Considering two planes with the following equations:
P 1 : 5x+y−2z=3
P 2 : −3x−2y+z=5
(a) The vector equation of the line of intersection, ℓ, of planes P1 and P2 is r = [1, 0, 0] + t[3, -13, -13].
(b) The acute angle between P1 and P2 is approximately 85.9 degrees.
(c) The Cartesian equation of plane P3, which contains line ℓ and is perpendicular to P1, is 5x - 41y - 8z = 207.
(d) Point A = (-5, 0, 1) is 30 units away from plane P1.
(e) The Cartesian equation of plane P4, which is 30 units away from P1 and contains point A, is 5x + y - 2z + 33 = 0.
(f) P2, P3, and P4 do not intersect.
Let's see a detailed step-by-step explanation for each section:
(a) The vector equation of the line of intersection, ℓ, of planes P1 and P2 can be found by taking the cross product of their normal vectors. Given that the normal vector of P1 is [tex]\(n_1 = [5, 1, -2]\)[/tex] and the normal vector of P2 is [tex]\(n_2 = [-3, -2, 1]\)[/tex] , we can calculate the cross product as [tex]\(d = n_1 \times n_2 = [3, -13, -13]\)[/tex] . This gives us the direction vector of the line of intersection.
To find a point on the line, we can set z = 0 in either of the plane equations (let's choose P1) and solve for x and y. Plugging in z = 0 in the equation of P1 gives 5x + y - 2(0) - 3 = 0, which simplifies to 5x + y - 3 = 0. Choosing x = 1 and solving for y gives y = 3. Therefore, we have a point on the line: [tex]\(P_0 = (1, 3, 0)\)[/tex].
Combining the direction vector d and the point [tex]\(P_0\)[/tex], we can write the vector equation of the line ℓ as r = [1, 3, 0] + t[3, -13, -13], where t is a parameter.
(b) To find the acute angle between planes P1 and P2, we can use the dot product of their normal vectors. Let's denote the acute angle as [tex]\(P_0\)[/tex]. The cosine of the angle can be calculated using the formula[tex]\(\cos(\theta) = \frac{{n_1 \cdot n_2}}{{|n_1| \cdot |n_2|}}\)[/tex], where [tex]\(\cdot\)[/tex] denotes the dot product and [tex]\(|n_1|\)[/tex] and [tex]\(|n_2|\)[/tex]represent the magnitudes of the normal vectors.
Plugging in the values, we have [tex]\(\cos(\theta) = \frac{{5 \cdot (-3) + 1 \cdot (-2) + (-2) \cdot 1}}{{\sqrt{5^2 + 1^2 + (-2)^2} \cdot \sqrt{(-3)^2 + (-2)^2 + 1^2}}}\)[/tex]. Simplifying this expression gives [tex]\(\cos(\theta) = \frac{{-29}}{{\sqrt{90}}}\)[/tex].
To find the acute angle [tex]\(\theta\)[/tex], we can take the inverse cosine of the above expression: [tex]\(\theta \approx \cos^{-1}\left(\frac{{-29}}{{\sqrt{90}}}\right)\)[/tex]. Evaluating this using a calculator, we find [tex]\(\theta \approx 85.9\)[/tex] degrees.
(c) Given that P3 contains the line ℓ and is perpendicular to P1, the normal vector of P3 is the same as the direction vector of ℓ, which is d = [3, -13, -13]. We can find the equation of P3 by substituting the coordinates of a point on the line (such as [tex]\(P_0 = [1, 3, 0]\))[/tex] and the direction vector d into the general equation of a plane. This yields the Cartesian equation of P3 as 3(x - 1) - 13y - 13z = 0, which simplifies to 3x - 13y - 13z - 3 = 0. Multiplying through by -41 gives the desired equation 5x - 41y - 8z = 207.
(d) To determine if point A = (-5, 0, 1) is 30 units away from plane P1, we can substitute its coordinates into the equation of P1 and solve for the left-hand side. Plugging in the values, we have 5(-5) + 0 - 2(1) - 3 = -30. Since the left-hand side evaluates to -30, which is equal to the desired distance, we can conclude that point A is indeed 30 units away from plane P1.
(e) To find the Cartesian equation of plane P4 that is 30 units away from P1 and contains point A, we start with the equation of P1 and introduce a distance parameter, d. Adding or subtracting d to the right-hand side of the equation will shift the plane by the desired distance. Thus, the equation of P4 can be written as 5x + y - 2z + 3 + 30 = 0, which simplifies to 5x + y - 2z + 33 = 0.
(f) P2, P3, and P4 do not intersect. Since the acute angle between P1 and P2 is approximately 85.9 degrees, they are not parallel and do intersect in a line. However, P3 is perpendicular to P1, and P4 is parallel to P1. Therefore, P2, P3, and P4 do not intersect.
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{(-3, 5), (-2, 4), (0, 9) (2,4)}
HELPPP PLEASE PLEASE ILL PAY U
Answer:
edit the question clearly
Answer:
Domain: {-3, -2, 0, 2}
Range: {5, 4, 9}
This is a function.
The relation is not linear.
Step-by-step explanation:
I didn't know which one you wanted so I put what I knew.
Have a great day thx for your inquiry :)
Suppose that there are 3 boxes and inside the boxes are 1 ball and 2 marbles in some order. You are supposed to find the box with the ball. You choose the first box but before it is opened, a different box is opened, revealing a marble. You are given a chance to change your choice of box. What is the probability that you will choose the box leading to the ball if you change your choice to the box?
The chance of picking the ball is 2/3, or approximately 67 percent.
There are three boxes containing one ball and two marbles, and the probability that the ball is in the first box is 1/3. Before it is opened, a different box is opened, revealing a marble. The probability that the other box has the ball is 2/3 if the first box has a marble.
By switching boxes, you'll have a better chance of finding the ball. It is a probability problem.Suppose you choose Box A as your first choice, and without loss of generality, suppose the ball is in Box A. With probability 1/3, the ball is in Box A, and with probability 2/3, the ball is in either Box B or Box C.
When the host opens Box C, the possible outcomes for your first choice are as follows:Box A, Box BBox A, Box CIn the first scenario, switching your choice from Box A to Box B yields a loss, whereas switching your choice from Box A to Box C yields a victory in the second scenario. In both cases, the outcome is 1/2.
Therefore, when you switch, the chance of picking the ball is 2/3, or approximately 67 percent.
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FREQUENCY DISTRIBUTION Construct a frequency distribution of the magnitudes. Use a class width of 0.50 and use a starting value of 1.00.
Magnitude Depth (km)
2.45 0.7
3.62 6.0
3.06 7.0
3.3 5.4
1.09 0.5
3.1 0.0
2.99 7.0
2.58 17.6
2.44 7.0
2.91 15.9
3.38 11.7
2.83 7.0
2.44 7.0
2.56 6.9
2.79 17.3
2.18 7.0
3.01 7.0
2.71 7.0
2.44 8.1
1.64 7.0
The frequency distribution of the magnitudes with a class width of 0.50 and a starting value of 1.00 is shown in the table below.
Magnitude Frequency
1.00-1.505.005-2.005.002-2.504.002.5-3.003.003-3.503.503.5-4.004.004-4.505.00.
The frequency of the magnitude is plotted on the y-axis while the magnitude classes are plotted on the x-axis.
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If 4.21 g of CuNO_3 is dissolved in water to make a 0.510M solution, what is the volume of the solution in milliliters?
The volume of the solution is 65.7 milliliters.
To find the volume of the solution, we can use the formula:
Molarity (M) = moles of solute / volume of solution (in liters)
First, let's calculate the moles of CuNO3 using its molar mass. The molar mass of CuNO3 is the sum of the atomic masses of copper (Cu), nitrogen (N), and oxygen (O).
Cu: 63.55 g/mol
N: 14.01 g/mol
O: 16.00 g/mol (x3 because there are three oxygen atoms in CuNO3)
Molar mass of CuNO3 = 63.55 + 14.01 + (16.00 x 3) = 63.55 + 14.01 + 48.00 = 125.56 g/mol
Next, we can convert the given mass of CuNO3 (4.21 g) to moles using the equation:
moles = mass / molar mass
moles of CuNO3 = 4.21 g / 125.56 g/mol = 0.0335 mol
Now, we can use the formula for molarity to find the volume of the solution.
Molarity (M) = moles of solute / volume of solution (in liters)
0.510 M = 0.0335 mol / volume (in liters)
Rearranging the formula, we get:
volume (in liters) = moles of solute / molarity
volume (in liters) = 0.0335 mol / 0.510 M = 0.0657 L
Finally, we can convert the volume from liters to milliliters by multiplying by 1000:
volume (in milliliters) = 0.0657 L x 1000 = 65.7 mL
Therefore, the volume of the solution is 65.7 milliliters.
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Solve for MRS
y= 24 - (4(square root of x))
The Marginal Rate of Substitution (MRS) for the given function is equal to -2/sqrt(x). To find the Marginal Rate of Substitution (MRS), we need to take the derivative of the given function with respect to x.
Given: y = 24 - 4(sqrt(x))
Step 1: Differentiate the function y with respect to x.
dy/dx = d/dx(24 - 4(sqrt(x)))
Step 2: Differentiate each term separately using the power rule and chain rule.
dy/dx = 0 - 4(1/2)(x^(-1/2))(1)
Step 3: Simplify the derivative.
dy/dx = -2(x^(-1/2))
Step 4: Rewrite the derivative in terms of MRS.
MRS = dy/dx = -2/sqrt(x)
Therefore, the Marginal Rate of Substitution (MRS) for the given function y = 24 - 4(sqrt(x)) is -2/sqrt(x).
The negative sign indicates that the MRS is inversely related to x, which means as x increases, the MRS decreases. The value of MRS represents the rate at which a consumer is willing to substitute y (the dependent variable) for an incremental change in x (the independent variable). In this case, as x increases, the consumer is willing to substitute less y for the additional units of x.
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Given the first five terms of the sequence {a n
}, determine the next two terms of sequence, find a recurrence relation that generates the sequence, including an initial value with the first index, and find the explicit formula that generates the nth term of the sequence. {a n
}={(1, 3
1
, 9
1
, 27
1
, 81
1
,…)}
The next two terms are: [tex]a_{6} =[/tex] 1/[tex]3^{5}[/tex] and [tex]a_{7} =[/tex] 1/[tex]3^{6}[/tex] .
Explicit formula,
[tex]a_{n} = 1/ 3^{n-1}[/tex]
Given,
[tex]a_{n}[/tex] = { 1, 1/3 , 1/9 , 1/27 , 1/81 , .. }
[tex]a_{n}[/tex] = { 1/[tex]3^{0}[/tex] , 1/[tex]3^{1}[/tex] , 1/[tex]3^{2}[/tex], 1/[tex]3^{3}[/tex] , 1/[tex]3^{4}[/tex] ...... }
Here,
Next two terms,
Sixth term,
[tex]a_{n} = 1/ 3^{n-1}[/tex]
Substitute n = 6,
[tex]a_{6} =[/tex] 1/[tex]3^{5}[/tex]
Seventh term,
[tex]a_{n} = 1/ 3^{n-1}[/tex]
Substitute n = 7,
[tex]a_{7} =[/tex] 1/[tex]3^{6}[/tex]
Explicit formula,
[tex]a_{n} = 1/ 3^{n-1}[/tex]
By substituting the n values we can get the desired term .
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A triangle is cut out of a parallelogram. The base of the parallelogram is 86 centimeters. The height of the parallelogram is 80 centimeters. The base and height of the triangle are half of the base and height of the parallelogram, respectively. What is the area of the figure after the triangle is removed?
The area of the figure after the triangle is removed from the parallelogram is 5,160 square centimeters.
rrTo find the area of the figure after the triangle is removed from the parallelogram, we first need to calculate the area of the parallelogram and the area of the triangle.
The area of a parallelogram is given by the formula: Area = base * height.
In this case, the base of the parallelogram is 86 centimeters and the height is 80 centimeters. So, the area of the parallelogram is: Area_parallelogram = 86 cm * 80 cm = 6,880 square centimeters.
Next, we need to find the area of the triangle. The base and height of the triangle are half of the base and height of the parallelogram, respectively. So, the base of the triangle is 86 cm / 2 = 43 centimeters, and the height of the triangle is 80 cm / 2 = 40 centimeters.
The area of a triangle is given by the formula: Area = (base * height) / 2.
Substituting the values, we have: Area_triangle = (43 cm * 40 cm) / 2 = 1,720 square centimeters.
Now, to find the area of the figure after the triangle is removed, we subtract the area of the triangle from the area of the parallelogram:
Area_figure = Area_parallelogram - Area_triangle
Area_figure = 6,880 square centimeters - 1,720 square centimeters
Area_figure = 5,160 square centimeters.
Therefore, the area of the figure after the triangle is removed from the parallelogram is 5,160 square centimeters.
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Find the absolute extreme values of the function on the interval. h(x) = x+5,-2 ≤x≤3 absolute maximum is- - absolute maximum is absolute maximum is- absolute maximum is 13 at x = 3; absolute minimum is 4 at x = -2 2 at x = -3; absolute minimum is -3 at x = 2 72 72 at x = -2; absolute minimum is 4 at x = 3 at x = 3; absolute minimum is 4 at x = -2
The absolute maximum is 8 at x = 3 and the absolute minimum is 3 at x = -2 for the function h(x) = x+5 on the interval -2 ≤ x ≤ 3.
The correct option is, the absolute maximum is 8 at x = 3;
The absolute minimum is 3 at x = -2.
To find the absolute extreme values of the function h(x) = x+5 on the interval -2 ≤ x ≤ 3,
We have to find the highest and lowest points of the graph on that interval.
Find the critical points of the function by setting h'(x) = 0,
h'(x) = 1
Since h'(x) is a constant, there are no critical points.
Therefore, we only have to check the endpoints of the interval.
When x = -2,
h(x) = -2+5 = 3
When x = 3,
h(x) = 3+5 = 8
Therefore,
The absolute minimum of h(x) on the interval is 3, which occurs at x = -2. The absolute maximum of h(x) on the interval is 8, which occurs at x = 3.
Hence, the function h(x) = x+5 has an absolute minimum of 3 at x = -2 and an absolute maximum of 8 at x = 3 on the interval -2 ≤ x ≤ 3.
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anjak Corporation manager, Mr Atan is part of a management team that for several months has been discussing plans to develop a new AIS. Rumours about the major organisational changes that may be required to implement the strategic plan have been circulating for months. Several employees who are very anxious about the expected changes have confronted Encik Atan to ask him directly about them. Required: a) Briefly explain FOUR (4) reasons why companies change existing system. (8 marks) b) Describe THREE (3) possible reasons why behavioral problems occur when Tanjak Corporation plans to introduce a new AIS. (9 marks) c) Discuss TWO (2) actions that Tanjak Corporation can take to alleviate the resistance.
a. Four reasons why companies change existing systems are Technological advancements, Business process improvement, Regulatory compliance and Organizational growth.
b. Three possible reasons why behavioral problems occur when Tanjak Corporation plans to introduce a new AIS are
Fear of job loss or role changes,Lack of training and understanding and Cultural resistance.
c.Two actions that Tanjak Corporation can take to alleviate resistance are Communication and employee involvement and Training and support.
a) Four reasons why companies change existing systems:
1. Technological advancements: Companies often change existing systems to take advantage of new technologies that can improve efficiency, accuracy, and productivity. For example, upgrading to a cloud-based system can provide real-time access to data, enhance collaboration, and reduce IT infrastructure costs.
2. Business process improvement: Changes in business processes may require corresponding changes in the information systems supporting those processes. Organizations aim to streamline operations, eliminate bottlenecks, and enhance overall effectiveness. Implementing an updated system can automate manual tasks, integrate workflows, and improve data analysis capabilities.
3. Regulatory compliance: Changes in regulations and legal requirements can necessitate modifications to existing systems. Companies must ensure their systems capture and report data accurately and meet compliance standards. Upgrading systems may involve implementing new security measures, data privacy controls, or reporting functionalities.
4. Organizational growth or restructuring: As companies expand, merge, or restructure, their information systems must adapt to support new organizational structures, business units, or geographical locations. Systems may need to integrate data from multiple entities, accommodate increased transaction volumes, or enable centralized reporting and analysis.
b) Three possible reasons why behavioral problems occur when Tanjak Corporation plans to introduce a new AIS:
1. Fear of job loss or role changes: Employees may worry that the new AIS will automate tasks previously performed manually, potentially leading to job redundancies or changes in job responsibilities. This fear can create resistance and reluctance to embrace the new system.
2. Lack of training and understanding: If employees are not adequately trained on the new AIS or do not understand its purpose and benefits, they may resist its implementation. Uncertainty about how to operate the system or how it will affect their work can lead to resistance and frustration.
3. Cultural resistance and organizational politics: Resistance to change can arise from the existing organizational culture or internal politics. Employees may resist the new AIS if it threatens existing power dynamics, challenges established ways of working, or disrupts established routines and relationships.
c) Two actions that Tanjak Corporation can take to alleviate resistance:
1. Communication and employee involvement: Clear and consistent communication about the reasons for implementing the new AIS, its benefits, and the expected impact on employees' roles can help alleviate resistance. Involving employees in the decision-making process, seeking their input, and addressing their concerns can foster a sense of ownership and reduce resistance.
2. Training and support: Providing comprehensive training on how to use the new AIS and offering ongoing support can help employees adapt to the changes more effectively. Training sessions, workshops, and access to user manuals or online resources can empower employees and increase their confidence in using the system. Additionally, offering support channels such as a helpdesk or dedicated support staff can address any issues or difficulties employees encounter during the transition period.
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help answer the question
Answer and Explanation:
Angles RDY and NDA are both right angles; their measures are both 90°.
This means that:
they are supplementary because their measures add to 180°, which is the definition of supplementary anglesthey are a linear pair because they are supplementary and adjacent (next to each other)They are NOT vertical angles because they are not on opposite angles of an intersection. They are NOT complementary because their measures don't add to 90°.
Find the equation of the straight line that passes through the points (1, 8) and (5, 0).
Give your answer in the form of ‘ = + ’.
tysm
Certainly! Here's the solution to find the equation of the straight line that passes through the points (1, 8) and (5, 0):
We can use the formula for the equation of a straight line, which is:
[tex] \sf y - y_1 = m(x - x_1) \\[/tex]
where [tex] \sf (x_1, y_1) \\[/tex] represents one of the points on the line and [tex] \sf m \\[/tex] is the slope of the line.
First, let's find the slope [tex] \sf m \\[/tex]:
[tex] \sf m = \frac{y_2 - y_1}{x_2 - x_1} \\[/tex]
Substituting the coordinates of the given points into the formula, we have:
[tex] \sf m = \frac{0 - 8}{5 - 1} \\[/tex]
[tex] \sf m = \frac{-8}{4} \\[/tex]
[tex] \sf m = -2 \\[/tex]
Now that we have the slope, let's choose one of the points (1, 8) and substitute it into the equation:
[tex] \sf y - 8 = -2(x - 1) \\[/tex]
Expanding and rearranging the equation, we get:
[tex] \sf y - 8 = -2x + 2 \\[/tex]
Now, let's simplify it further:
[tex] \sf y = -2x + 2 + 8 \\[/tex]
[tex] \sf y = -2x + 10 \\[/tex]
Therefore, the equation of the straight line that passes through the points (1, 8) and (5, 0) is:
[tex] \sf y = -2x + 10 \\[/tex]
[tex]\huge{\mathfrak{\colorbox{black}{\textcolor{lime}{I\:hope\:this\:helps\:!\:\:}}}}[/tex]
♥️ [tex]\large{\underline{\textcolor{red}{\mathcal{SUMIT\:\:ROY\:\:(:\:\:}}}}[/tex]
A simple graph with n ≥2 vertices satisfies the following
property: For any two distinct vertices, u, v, Deg(u)+Deg(v) ≥n
−1.
Prove there is a path of length at most 2 between any two
vertices.
Given a simple graph with n≥2 vertices satisfying the property that for any two distinct vertices, u, v, Deg(u)+Deg(v) ≥n − 1.To prove that there is a path of length at most 2 between any two vertices.
To prove that there is a path of length at most 2 between any two vertices, we can proceed in the following way:
Let u and v be any two vertices in the graph. Since the graph is connected, there exists a path of length 1 between u and v. This means that u and v are adjacent vertices.
Now, we need to consider two cases:
Case 1: u and v are not connected by an edge.
Let w be any vertex in the graph that is adjacent to u. Since u and v are not connected by an edge, w cannot be equal to v. Therefore, w is a distinct vertex. Now, consider the two vertices v and w.
Since v and w are distinct, we can apply the property of the graph to get:
Deg(v)+Deg(w) ≥ n − 1. Rearranging this inequality, we get:
Deg(v) ≥ n − Deg(w) − 1. Since Deg(u) + Deg(v) ≥ n − 1, we have:
Deg(u) ≥ 1 + Deg(w).
Combining these two inequalities, we get:
Deg(u) + Deg(v) ≥ n − 1 ≥ Deg(w) + Deg(v).
This means that there exists a vertex w that is adjacent to both u and v.
Therefore, there exists a path of length 2 between u and v: u → w → v.
Case 2: u and v are connected by an edge.
In this case, there is a path of length 1 between u and v.
Therefore, there exists a path of length at most 2 between u and v: u → v.
Hence, we have proved that there is a path of length at most 2 between any two vertices in the given graph.
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I
need help with is question ASAP!
Find f + g, f-g, fg, and f/g and their domains. f(x) = 3x², g(x) = x² - 4 Find (f + g)(x). -1 Find the domain of (f+g)(x). (Enter your answer using interval notation.) (-[infinity]0,00) Find (f - g)(x). -2
The sum (f + g)(x) is 4x² - 4 with domain (-∞, ∞), and the difference (f - g)(x) is 2x² + 4 with domain (-∞, ∞).
The sum, difference, product, and quotient of two functions f(x) and g(x) can be found by performing the corresponding operations on their respective values. Given f(x) = 3x² and g(x) = x² - 4, we can determine (f + g)(x), (f - g)(x), (f * g)(x), and (f / g)(x), as well as their domains.
To find (f + g)(x), we add the values of f(x) and g(x) together: (f + g)(x) = f(x) + g(x) = 3x² + (x² - 4) = 4x² - 4.
The domain of (f + g)(x) is the same as the domain of the individual functions f(x) and g(x), which is the set of all real numbers, represented as (-∞, ∞).
To find (f - g)(x), we subtract the values of g(x) from f(x): (f - g)(x) = f(x) - g(x) = 3x² - (x² - 4) = 3x² - x² + 4 = 2x² + 4.
The domain of (f - g)(x) is also the set of all real numbers, (-∞, ∞).
The product (f * g)(x) is obtained by multiplying the values of f(x) and g(x): (f * g)(x) = f(x) * g(x) = (3x²) * (x² - 4) = 3x⁴ - 12x².
The domain of (f * g)(x) remains the same as the domains of f(x) and g(x), which is (-∞, ∞).
Lastly, the quotient (f / g)(x) is calculated by dividing f(x) by g(x): (f / g)(x) = f(x) / g(x) = (3x²) / (x² - 4).
The domain of (f / g)(x) excludes any values of x that make the denominator zero. In this case, x² - 4 = 0 when x = ±2. Therefore, the domain is (-∞, -2) ∪ (-2, 2) ∪ (2, ∞).
In summary, (f + g)(x) = 4x² - 4 with domain (-∞, ∞), (f - g)(x) = 2x² + 4 with domain (-∞, ∞), (f * g)(x) = 3x⁴ - 12x² with domain (-∞, ∞), and (f / g)(x) = (3x²) / (x² - 4) with domain (-∞, -2) ∪ (-2, 2) ∪ (2, ∞).
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Illustrate the difference between maintenance, reliability and reliability centred maintenance by means of examples. (6) Differentiate between evident and hidden function by means of examples. There are different categories of secondary functions. By means of examples, illustrate the functions of any asset of your choice that indicates: 1.2 1.3 1.3.1 appearance; 1.3.2 efficiency: 1.3.3 containment. Please note: examples taken from the textbook will not be considered.
Efficiency function can be illustrated by a motor that delivers the specified output while consuming less energy than similar motors on the market.
Maintenance is the processes undertaken to ensure that a plant, equipment, or facility is running correctly. Reliability means maintaining assets or equipment in a state of readiness such that they can function at their highest level of expected effectiveness or efficiency.
Reliability-Centered Maintenance (RCM) is a method used to develop scheduled maintenance strategies for machinery by defining all the functional requirements for the equipment. The primary objective is to ensure that the physical assets of the business continue to function as intended and deliver the desired outcomes to achieve the company's goals.
A visible function is a function that can be seen, whereas a hidden function is one that cannot be seen but is nonetheless critical to the asset's efficient operation.
Example of evident function - Water pump that is visible and can be seen working.
Example of a hidden function - Fuel pump that is hidden and cannot be seen working.
The function of containment can be illustrated by the example of an oil tanker. If an oil tanker were to leak, the containment function would serve to ensure that the oil remains in the tanker and does not spill into the environment.
Appearance function can be illustrated by a building whose exterior has been well maintained, such that it appears pleasing to the eye and gives a positive impression of the organization
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film company is deciding on the price of the video release of one of its films. Its marketing people estimate that at a price of p dollars, it can sell a total of q-500000 - 20000 p copies What price will bring in the greatest revenue? Click here to create a new row
The price that will bring in the greatest revenue is $25,000.
Here's how to solve the problem:
Let R be the revenue made from selling the copies of the film. The total number of copies of the film that the company will sell is given by the expression q - 500000 - 20000p.
The revenue R can be calculated by multiplying the price p of each copy by the total number of copies sold, i.e.,
R(p) = p(q - 500000 - 20000p)
R(p) = pq - 500000p - 20000p²
To find the price that will bring in the greatest revenue, we need to find the value of p that maximizes R(p).
To do this, we can differentiate R(p) with respect to p and set the derivative equal to zero:
dR/dp = q - 500000 - 40000
p = 0
q - 500000 = 40000p
q/40000 - 500000/40000 = p
p = q/40000 - 12.5
Substitute the given value of q = 5500000:
p = 5500000/40000 - 12.5
p = 137.5 - 12.5
p = $25,000
Therefore, the price that will bring in the greatest revenue is $25,000.
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For y =
−1
b + cos x
with 0 ≤ x ≤ 2π and 2 ≤ b ≤ 6, where does the lowest point of the graph occur?
What happens to the graph as b increases?
The lowest point of the graph occurs when b = 6. As b increases, the graph is compressed vertically and shifts downward, getting closer to the x-axis.
To find the lowest point of the graph, we need to identify the minimum value of y for the given range of x and values of b. By observing the equation y = -1/b + cos(x), we can see that the lowest point will occur when the term -1/b is minimized, which happens when b is at its maximum value of 6.
When b is at its maximum value of 6, the term -1/b becomes -1/6, which is the smallest it can be within the given range. Therefore, the lowest point of the graph occurs when b = 6.
As b increases, the graph undergoes a vertical shift downward, moving closer to the x-axis. The effect of increasing b is to compress the graph vertically, making it "flatter" and closer to the x-axis. This is because as b increases, the magnitude of the term -1/b becomes smaller, causing the cosine term to dominate and pull the graph downward.
In summary, the lowest point of the graph occurs when b = 6. As b increases, the graph is compressed vertically and shifts downward, getting closer to the x-axis.
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3) The lifetime risk of developing pancreatic cancer is about
one in 50. Supposed we randomly sample 300 people, what is the
mean?
The lifetime risk of developing pancreatic cancer is one in 50.
Suppose we randomly sample 300 people,
What is the mean? The probability of developing pancreatic cancer is p=1/50=0.02.
The sample size n = 300.The mean of the sample can be calculated using the formula:μ = npμ = 300 * 0.02μ = 6
Hence, the mean is 6.
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Elsa is painting his bedroom walls. Each wall requires \large 1\frac{1}{3}gallons of paint. He has \large 2\frac{1}{4} walls left to paint. How many gallons of paint will he need?
Elsa will need 3 gallons of paint to complete the remaining [tex]2\frac{1}{4}[/tex] walls.
To find out how many gallons of paint Elsa will need, we can multiply the amount of paint required per wall by the number of walls left to be painted.
The amount of paint required per wall is [tex]1\frac{1}{3}[/tex] gallons, which can also be written as [tex]\frac{4}{3}[/tex] gallons.
The number of walls left to be painted is [tex]2\frac{1}{4}[/tex] walls, which can be written as [tex]\frac{9}{4}[/tex] walls.
To calculate the total amount of paint required, we multiply the amount of paint per wall by the number of walls left:
[tex]\frac{4}{3} \times \frac{9}{4} = \frac{36}{12}[/tex] = 3 gallons.
Therefore, Elsa will need 3 gallons of paint to complete the remaining [tex]2\frac{1}{4}[/tex] walls.
It's important to note that in this calculation, we converted the mixed numbers[tex](1\frac{1}{3} and 2\frac{1}{4})[/tex] into improper fractions ( [tex]\frac{4}{3}[/tex] and [tex]\frac{9}{4}[/tex] ) to simplify the multiplication.
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Take four points A, B, C and D on a sheet of paper.
Join them in pairs. How many line segments do you get if
(i) the points are non-collinear?
(i) the points are collinear?
(iii) three of them are col
(i) When the four points A, B, C and D are non-collinear and joined in pairs, we obtain six line segments. These line segments are AB, AC, AD, BC, BD and CD. A line segment is a part of a line that is bounded by two distinct end points. Therefore, the six line segments obtained have two end points each, one of which coincides with the end point of another line segment.
(ii) When the four points A, B, C and D are collinear, they lie on a straight line. Joining them in pairs gives us three line segments. These line segments are AB, BC and CD. Since the points are collinear, there is only one straight line that passes through them. Each of the three line segments obtained have two end points each, one of which coincides with the end point of another line segment.
(iii) When three of the points A, B, C and D are collinear, they lie on a straight line. The fourth point can be placed anywhere on the plane. Joining them in pairs gives us four line segments. These line segments are AB, AC, AD and BC. Each of the four line segments obtained have two end points each, one of which coincides with the end point of another line segment.
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Find the general solution to 4y′′+y=2sec(t/2)
Given that 4y′′ + y = 2sec(t/2).
To find the general solution to the given equation.
Solution:The characteristic equation is given by:
4m² + 1 = 0
⇒ m² = -1/4
⇒ m = ±(i/2)
The general solution of the homogeneous equation is given by:
y = c₁ cos(t/2) + c₂ sin(t/2) ---------(1)
Now, consider the non-homogeneous part of the given equation, which is 2sec(t/2)
We assume that y_p = A sec(t/2)
Differentiate y_p with respect to t,y_p' = A sec(t/2) tan(t/2)
Differentiate y_p' with respect to t, y_p'' = A(sec²(t/2) + sec(t/2) tan²(t/2))
Substituting these values in the given equation we get,
4(A(sec²(t/2) + sec(t/2) tan²(t/2))) + Asec(t/2) = 2sec(t/2)
⇒ 4A sec²(t/2) + 4A sec(t/2) tan²(t/2) + Asec(t/2) - 2sec(t/2)
= 0
⇒ (4A + A)sec²(t/2) + (4A - 2) sec(t/2) tan²(t/2) - 2sec(t/2)
= 0
⇒ 5A sec²(t/2) + (4A - 2) sec(t/2) tan²(t/2)
= 2sec(t/2)
Therefore, A = 2/5 and
4A - 2 = 6
Thus, y_p = (2/5)sec(t/2)
The general solution of the differential equation 4y'' + y = 2sec(t/2) is given by combining the homogeneous equation (1) and particular solution which we found is, y = c₁ cos(t/2) + c₂ sin(t/2) + (2/5) sec(t/2)
Therefore, the general solution of the given differential equation is
y = c₁ cos(t/2) + c₂ sin(t/2) + (2/5) sec(t/2)
The general solution of the differential equation
4y'' + y = 2sec(t/2) is given by:
y = c₁ cos(t/2) + c₂ sin(t/2) + (2/5) sec(t/2)
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With respect to a fixed origin O, the lines l 1
and l 2
are given by the equations l 1
:r= ⎝
⎛
2
−3
4
⎠
⎞
+2 ⎝
⎛
−1
2
1
⎠
⎞
,l 2
:r= ⎝
⎛
2
−3
4
⎠
⎞
+μ ⎝
⎛
5
−2
5
⎠
⎞
where λ and μ are scalar parameters. (a) Find, to the nearest 0.1 ∘
, the acute angle between l 1
and l 2
. The point A has position vector ⎝
⎛
0
1
6
⎠
⎞
. (b) Show that A lies on /. The lines l1 and l2 intersect at the point X. (c) Write down the coordinates of X. (d) Find the exact value of the distance AX. The distinct points B 1
and B 2
both lie on the line /2. Given that AX=XB 1
=XB 2
. (e) find the area of the triangle AB 1
B 2
giving your answer to 3 significant figures. Given that the x coordinate of B 1
is positive, (f) find the exact coordinates of B 1
and the exact coordinates of B 2
.
We found that the acute angle between the lines l1 and l2 is approximately 47.8°. We then showed that the point A lies on the line l1. The lines l1 and l2 intersect at the point X, with coordinates (0, 1, 6). The distance between points A and X was found to be exactly 0. However, without specific values for B1 and B2, we could not determine the area of the triangle AB1B2 or the exact coordinates of B1 and B2.
To solve this problem, we'll go step by step.
(a) Finding the acute angle between l1 and l2:
The direction vectors of lines l1 and l2 are given by the coefficients of the parameters λ and μ. Let's call these direction vectors d1 and d2, respectively.
d1 = [2, -3, 4]
d2 = [5, -2, 5]
To find the acute angle between these two lines, we can use the dot product formula:
cos θ = (d1 · d2) / (|d1| * |d2|)
where · represents the dot product and |d1| and |d2| represent the magnitudes of the vectors d1 and d2, respectively.
Let's calculate this:
d1 · d2 = (2 * 5) + (-3 * -2) + (4 * 5) = 10 + 6 + 20 = 36
[tex]|d1| = \sqrt{(2^2) + (-3^2) + (4^2)} = \sqrt{4 + 9 + 16} = \sqrt{29}[/tex]
[tex]|d2| = \sqrt{(5^2) + (-2^2) + (5^2)} = \sqrt{25 + 4 + 25} = \sqrt{54}[/tex]
cos θ = 36 /( ([tex]\sqrt{29[/tex]) * ([tex]\sqrt{54[/tex])) ≈ 0.675
To find the acute angle θ, we can take the inverse cosine (arccos) of cos θ:
θ ≈ arccos(0.675) ≈ 47.8° (rounded to the nearest 0.1°)
Therefore, the acute angle between l1 and l2 is approximately 47.8°.
(b) Showing that A lies on l1:
To show that a point lies on a line, we substitute the coordinates of the point into the equation of the line and check if it satisfies the equation.
Point A has position vector A = [0, 1, 6]. Substituting these values into the equation of l1:
l1: r = [2, -3, 4] + λ[-1, 2, 1]
Substituting A = [0, 1, 6]:
[0, 1, 6] = [2, -3, 4] + λ[-1, 2, 1]
This equation can be rewritten as a system of equations:
2 - λ = 0
-3 + 2λ = 1
4 + λ = 6
Solving this system, we find:
λ = 2
Since λ = 2 satisfies the system of equations, we conclude that A lies on l1.
(c) Finding the coordinates of X:
To find the point of intersection between l1 and l2, we equate their respective equations:
l1: r = [2, -3, 4] + λ[-1, 2, 1]
l2: r = [2, -3, 4] + μ[5, -2, 5]
Equate the x, y, and z components separately:
For x:
2 - λ = 2 + 5μ
For y:
-3 + 2λ = -3 - 2μ
For z:
4 + λ = 4 + 5μ
Solving this system of equations, we find:
λ = 2
μ = 0
Substituting these values into either equation, we get:
X = [2, -3, 4] + 2[-1, 2
, 1] = [0, 1, 6]
Therefore, the coordinates of the point X are (0, 1, 6).
(d) Finding the exact value of the distance AX:
The distance between two points A and X can be calculated using the distance formula:
Distance [tex]AX = \sqrt{(x2 - x1)^2 + (y2 - y1)^2 + (z2 - z1)^2[/tex]
Substituting the coordinates of A = [0, 1, 6] and X = [0, 1, 6]:
Distance [tex]AX = \sqrt{(0 - 0)^2 + (1 - 1)^2 + (6 - 6)^2) }= \sqrt{0 + 0 + 0[/tex] = 0
Therefore, the exact value of the distance AX is 0.
(e) Finding the area of the triangle AB1B2:
To find the area of a triangle given the coordinates of its vertices, we can use the Shoelace formula or the cross product of two vectors formed by the triangle's sides. Since we have the coordinates of A, B1, and B2, let's use the cross product method.
Let's say vector AB1 = v1 and vector AB2 = v2.
Vector v1 = B1 - A = [x1, y1, z1] - [0, 1, 6] = [x1, y1 - 1, z1 - 6]
Vector v2 = B2 - A = [x2, y2, z2] - [0, 1, 6] = [x2, y2 - 1, z2 - 6]
The area of the triangle AB1B2 is given by:
Area = 0.5 * |v1 x v2|
The cross product of v1 and v2 is:
v1 x v2 = [y1 - 1, z1 - 6, x1] x [y2 - 1, z2 - 6, x2]
= [(z1 - 6)(x2) - (y2 - 1)(x1), (x1)(y2 - 1) - (z1 - 6)(y1 - 1), (y1 - 1)(z2 - 6) - (z1 - 6)(y2 - 1)]
Since AX = XB1 = XB2, the vectors v1 and v2 are parallel. Hence, their cross product will be zero:
[(z1 - 6)(x2) - (y2 - 1)(x1), (x1)(y2 - 1) - (z1 - 6)(y1 - 1), (y1 - 1)(z2 - 6) - (z1 - 6)(y2 - 1)] = [0, 0, 0]
Solving these equations, we get:
(z1 - 6)(x2) - (y2 - 1)(x1) = 0
(x1)(y2 - 1) - (z1 - 6)(y1 - 1) = 0
(y1 - 1)(z2 - 6) - (z1 - 6)(y2 - 1) = 0
Since we don't have specific values for B1 and B2, we cannot determine the area of the triangle AB1B2.
(f) Finding the exact coordinates of B1 and B2:
Without specific values for B1 and B2, we cannot determine their exact coordinates.
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At the movie theatre, child admission is $5.40 and adult admission is $9.50. On Wednesday, 146 tickets were sold for a total sales of $1001.60. How many adult tickets were sold that day?
Answer:
52 adult tickets
Step-by-step explanation:
We can write a system of equations to solve this:
Let x represent child tickets and y represent adult tickets.
x+y=146
5.4x+9.5y=1001.6
Solve for y in the first equation:
x+y=146
subtract x from both sides
y=146-x
Substitute this into the second equation:
5.4x+9.5(146-x)=1001.6
simplify
5.4x+1387-9.5x=1001.6
combine like terms
-4.1x + 1387=1001.6
subtract 1387 from both sides
-4.1x=-385.4
divide both sides by -4.1
x=94
Next, plug in this into the first equation and solve for y (adult tickets).
94+y=146
subtract 94 from both sides
y=52
So, 52 adult tickets were sold that day.
Hope this helps! :)
Find The Cost Function For The Marginal Cost Function. C′(X)=0.05e0.01x; Fixed Cost Is $8 C(X)=
The cost function for the marginal cost function C′(x)=0.05e0.01x with a fixed cost of $8 is C(x) = 8 + 0.05e0.01x.
The marginal cost function is the derivative of the cost function. It tells us how much the cost of production increases when we produce one more unit of output. In this case, the marginal cost function is C′(x)=0.05e0.01x.
This means that the cost of producing one more unit of output is $0.05e0.01x.
The fixed cost is the cost that is incurred even when no output is produced. In this case, the fixed cost is $8. This means that the total cost of production is $8 plus the marginal cost of production.
Therefore, the cost function for the marginal cost function C′(x)=0.05e0.01x with a fixed cost of $8 is C(x) = 8 + 0.05e0.01x.
Here is a more detailed explanation of how to find the cost function:
The marginal cost function is the derivative of the cost function. This means that we can find the cost function by taking the integral of the marginal cost function. The integral of C′(x)=0.05e0.01x is 8 + 0.05e0.01x. Therefore, the cost function is C(x) = 8 + 0.05e0.01x.
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Find the general solution of the nonhomogeneous differential
equations
3y′′ −4y′ + y = x^2 +8x + 6.
the general solution to the nonhomogeneous differential equation is y(x) = c₁[tex]e^{(x/3) }[/tex]+ c₂[tex]e^x[/tex]+ [tex]x^2[/tex]+ 12x, where c₁ and c₂ are arbitrary constants.
To find the general solution of the nonhomogeneous differential equation 3y′′ − 4y′ + y = [tex]x^2 +[/tex] 8x + 6, we first solve the associated homogeneous equation, then find a particular solution for the nonhomogeneous equation and combine them.
Step 1: Solve the associated homogeneous equation 3y′′ − 4y′ + y = 0.
The characteristic equation is:
[tex]3r^2[/tex]- 4r + 1 = 0
Factoring the characteristic equation, we get:
(3r - 1)(r - 1) = 0
This gives us two solutions: r = 1/3 and r = 1.
The general solution to the homogeneous equation is:
y_h(x) = c₁[tex]e^{(x/3)}[/tex] + c₂[tex]e^x[/tex]
Step 2: Find a particular solution for the nonhomogeneous equation.
To find a particular solution, we use the method of undetermined coefficients. Since the right-hand side of the equation is a polynomial of degree 2, we assume a particular solution of the form:
[tex]y_p(x) = Ax^2 + Bx + C[/tex]
We substitute this into the nonhomogeneous equation and solve for the coefficients A, B, and C.
Plugging [tex]y_p(x)[/tex]into the nonhomogeneous equation, we get:
3(2A) - 4(2Ax + B) +[tex]Ax^2 + Bx + C = x^2 + 8x + 6[/tex]
Simplifying and equating the coefficients of like terms, we have:
A = 1
-4A + B = 8
6 - 4B + C = 6
From the second equation, we find B = 12, and from the third equation, we find C = 0.
Therefore, a particular solution is:
[tex]y_p(x) = x^2 + 12x[/tex]
Step 3: Combine the homogeneous and particular solutions to find the general solution.
The general solution to the nonhomogeneous equation is given by:
[tex]y(x) = y_h(x) + y_p(x)[/tex]
Substituting the values obtained in the homogeneous and particular solutions, we have:
y(x) = c₁[tex]e^{(x/3)}[/tex] + c₂[tex]e^x + x^2 + 12x[/tex]
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How do chemical composition, sample properties and experimental consitions determine the kinetic energy of an Auger electron?
The kinetic energy of an Auger electron is determined by several factors, including the chemical composition of the material, sample properties, and experimental conditions.
The Auger effect is a process in which an atom undergoes an electronic transition, resulting in the emission of an Auger electron. The energy of the Auger electron can be calculated using the following equation:
E_auger = E_i - E_f - B
where E_auger is the kinetic energy of the Auger electron, E_i is the initial energy of the atom, E_f is the final energy of the atom after the electronic transition, and B is the binding energy of the Auger electron in the material.
The chemical composition of the material plays a crucial role in determining the binding energy (B) of the Auger electron. Different elements have different binding energies due to variations in their atomic structure. Thus, the Auger electron energy will depend on the specific elements present in the sample.
Sample properties, such as the atomic arrangement, crystal structure, and electronic configuration, can also influence the Auger electron energy. These properties affect the initial and final energy levels of the atom involved in the Auger process.
Experimental conditions, such as the incident photon energy and the angle of detection, can affect the Auger electron energy. Varying these conditions can alter the energy levels of the electronic transitions, leading to different kinetic energies of the Auger electron.
The kinetic energy of an Auger electron is determined by the chemical composition of the material, sample properties, and experimental conditions. The binding energy of the Auger electron depends on the specific elements present in the sample, while sample properties and experimental conditions affect the initial and final energy levels of the atom involved in the Auger process. Understanding these factors is crucial for interpreting Auger electron spectroscopy data and studying electronic transitions in materials.
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Among 200 households surveyed, 110 have high-speed internet, 38 have land-line phone service, 128 have mobile phone service, 27 have high-speed internet and land-line phone service, 31 have land-line phone service and mobile phone service. Of those with mobile phone service, 80 have high-speed internet. What is the probability that a household will have high-speed internet and mobile phone service?
The probability that a household will have high-speed internet and mobile phone service is 0.4 or 40%.
The probability that a household will have high-speed internet and mobile phone service can be calculated as 80 divided by the total number of households surveyed.
In the given scenario, we have information about the number of households with high-speed internet, land-line phone service, and mobile phone service. We are specifically interested in determining the probability of a household having both high-speed internet and mobile phone service.
According to the information provided, there are 200 households surveyed in total. Of these, 110 have high-speed internet, and 128 have mobile phone service. Additionally, 27 households have both high-speed internet and land-line phone service, and 31 households have both land-line phone service and mobile phone service. Furthermore, out of the households with mobile phone service, 80 also have high-speed internet.
To calculate the probability of a household having high-speed internet and mobile phone service, we divide the number of households with both services (80) by the total number of households surveyed (200):
Probability = 80 / 200 = 0.4
The probability is 0.4 or 40%, that a household will have high-speed internet and mobile phone service
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For the demand function q=D(p)= (p+2) 2
500
, find the folowing a) The elasticky b) The efassicity at p=9, stating whether the demand is elastic, inelassc er has unit elasticity c) The value(s) of p for which totai reverue ia a maxinum (assume that p is in dolan) a) Find the equation for elasticily E(p) = b) Find the elasticty at the given price, slating whether the demand is elassc. nelastc or has unt olassaly E E(B) = (6 mplify your answer. Tyfe an integor or a tracton?) Is the demand olastic, inelastic, of does it have unt elastoky? A. elastic. 8. inelastic c. unit nasticty c) The value(a) of for which boeal Fevenuis is a mawmum (assame that is in dotarn). Fiound to tho neacest cont as needed. Use a coctea in weparate anarers as needed ).
a) Elasticity: The elasticity of demand is the ratio of the percentage change in quantity demanded to the percentage change in price.
It tells us the percentage change in quantity demanded resulting from a percentage change in price, and indicates how responsive the quantity demanded is to changes in price. It is given by the equation:
E(p) = (p+2)^2 * 500 / (p+2)^2 * -2
E(p) = -250000/p+2
b) Elasticity at p=9: E(9) = -250000/11 = -22727.27
The demand is inelastic since |E(p)| < 1.
c) Total revenue: Total revenue is given by the equation:
TR(p) = (p+2)^2 * 500
TR(p) = 500p^2 + 2000p + 2000
The derivative of this equation gives us the slope of the curve, which is 0 at the maximum point of the curve. Hence, we have to find the value of p that makes the derivative of TR(p) equal to 0. Differentiating TR(p),
we get:
dTR(p)/dp = 1000p + 2000
1000p + 2000 = 0
p = -2
Since the value of p is negative, the total revenue is maximum at p = $0. Hence, we have to take the value of p as 0 to find the maximum revenue.
TR(0) = 2000.
Thus, the value of p for which the total revenue is maximum is $0 and the maximum revenue is $2000.
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1 2 3 4 5 6 7 8 9 10 What is the most specific name that can be given to a figure with the following coordinates? (–10, 8), (–7, 13), (3, 7), and (0, 2) A. rectangle B. square C. trapezoid D. parallelogram
The most specific name that can be given to a figure with the following coordinates (–10, 8), (–7, 13), (3, 7), and (0, 2) is: A. rectangle.
What is a rectangle?In Mathematics and Geometry, a rectangle can be defined as a type of quadrilateral in which its opposite sides are equal and all the angles that are formed are right angles.
In any rectangle, each of the two (2) opposite sides are equal and parallel and the two (2) diagonals are equal. In this context, we have the following parallel sides;
√[(10 - 0)² + (8 - 2)²] = √[(-7 - 3)² + (13 - 7)²]
√(100 + 64) = √(100 + 64)
√136 units = √136 units
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Given that angle
a
= 71° and angle
b
= 192°, work out
x
.h
Find D3, D7, and D9, from the following data : (a) 80, 90, 70, 50, 40
We get the values of D3, D7, and D9 as 1.08, 2.52, and 3.24 respectively.
To find the D3, D7, and D9 from the following data (a) 80, 90, 70, 50, 40, you need to arrange the data in ascending order first. After that, you will use the formul[tex]a: $D_{p}= \frac{p}{100}(n+1)$ whe[/tex]re Dp is the p-th percentile, p is the percentile and n is the number of observations in the data set.Ascending order of the given data = 40, 50, 70, 80, 90We have n = 5;Now we can find D3, D7, and D9 as f[tex]ollows:$$D_{3}= \frac{3}{100}(5+1)= \frac{3}{100}(6)= 0.18(5+1)= 1.08$$Ther[/tex]efore, D3 = 1.08. That means 3% of the values in the data are less than or equal to 1.08. So, D3 is the value that separates the bottom 3% of the data from the top 97%.Now, we can find D7 using the same formula:[tex]$$D_{7}= \frac{7}{100}(5+1)= \frac{7}{100}(6)= 0.42(5+1)= 2.52$$[/tex]Therefore, D7 = 2.52. That means 7% of the values in the data are less than or equal to 2.52. So, D7 is the value that separates the bottom 7% of the data from the top 93%.Finally, we can find D9 using the same formula[tex]:$$D_{9}= \frac{9}{100}(5+1)= \frac{9}{100}(6)= 0.54(5+1)= 3.24$$Therefore,[/tex]D9 = 3.24. That means 9% of the values in the data are less than or equal to 3.24. So, D9 is the value that separates the bottom 9% of the data from the top 91%.
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