The line which passes through the points (2,-1) and (4,-1) has the slope-intercept equation as y = -1.
What is the slope-intercept form?
The line with m as the slope, m and c as the y-intercept is the graph of the linear equation y = mx + c. The values of m and c are real integers in the slope-intercept form of the linear equation.
The line passes through point (x1,y1) = (2,-1) and (x2,y2) = (4,-1)
The formula to find slope is -
m = (y2-y1)/(x2-x1)
m = (-1+1)/(4-2)
m = 0/2
m = 0
Now use the slope and point (2,-1) to find the y-intercept.
y = mx + b
-1 = 0(2) + b
-1 = 0 + b
b = -1
Write the equation in slope-intercept form as -
y = mx + b
y = 0x + (-1)
y = -1
Therefore, the equation is obtained as y = -1.
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find the quiotient 9.43/82.show your work
0.115 is the quotient of 9.43/82
What is Division?A division is a process of splitting a specific amount into equal parts.
In division, we divide a number by any other number to get another number as a result.
The number which is getting divided here is called the dividend.
The number which divides a given number is the divisor.
The number which we get as a result is known as the quotient.
9.43/82 we have to find quotient
9.43 is the dividend and 82 is the divisor
9.43/82=0.115
Hence, 0.115 is the quotient of 9.43/82
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Please help me! Show me the solution cause thats all I need! Please dont do it wrong I know the answer but need the solution! Thank you!
Solution for the given expression is x = 16y^2 -5.
What is an algebraic Expression?Any mathematical statement that includes numbers, variables, and an arithmetic operation between them is known as an expression or algebraic expression. In the phrase 4m + 5, for instance, the terms 4m and 5 are separated from the variable m by the arithmetic sign +.
Given an expression in terms of x where y and x both are variables
To make x the subject we need to calculate the value of x in terms of y
Thus,
√(x +5) / 4 = y
multiply by 4 both sides
√(x + 5 ) = 4y
take square
x + 5 = 16 y²
x = 16y² - 5
therefore, given expression in terms of y is x = 16y² - 5.
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Find the slope of the line graphed below.
Answer: 0.8? i'm not sure lol check explaination
Step-by-step explanation:
slope formula: y2-y1/x2-x1
5-1/3-(-2)=4/5=0.8
Find the class with the least number of data values. a. 55-65 b. 75-85 c. 65-75 d. 85-95
As per the given bar graph, the class with the least number of data values is 85 - 95.
The term bar graph in math is defined as a graphical representation of data, quantities, or numbers using bars or strips and they are used to compare and contrast different types of data, frequencies, or other measures of distinct categories of data.
Here we have the following bar graph with the values are plotted on it.
By looking into the given graph we have idetintified the value of the interval as follows:
35 - 45 = 3
45 - 55 = 5
55 - 65 = 8
65 - 75 = 6
75 - 85 = 4
85 - 95 = 2
As we looking into the value we know that the option (d) has the lowest value among them.
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Consider each distribution. Determine if it is a valid probability distribution or not, and explain your answer. (a) X 0 1 2 . P(X) 0.22 0.62 0.16 Yes. The probabilities sum to 1. No. The probabilities do not sum to 1. No. The probabilities sum to 1. Yes. The probabilities do not sum to 1.
Yes, the above mentioned is a valid probability distribution because the probabilities add up to give you 1.
Probability distribution gives you the probability of different variations of the event happening. It gives the chances of the occurrence of random events like rolling a die, tossing a coin, etc. To check whether your probability distribution is right, you have to sum up your probabilities. If it adds up to 1, it is right. If it does not, it is not. Only if the sum is 1, the table shows the real probability of the event happening. In this question, 0.22 + 0.62 + 0.16 = 1. Therefore, the probability distribution is valid.
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julie mistakenly calculated the conditional relative frequency for college students who like comedy as being 70% what did julie actually calculate and what is the correct answer
Therefore, correct response is percentage C. "For comedies that college students enjoy, she estimated the conditional relative frequency. The right response is 28%.
Define a percentage.A number or figure that is expressed as a fraction of 100 is known as a percentage in mathematics. There are also sporadic uses of the acronyms "pct.," "pct," and "pc." However, the "%" symbol used to represent it is often employed. No dimensions exist; the % amount is flat. Percentages are essentially fractions because their numerator is 100. A percent symbol (%) should be placed in front of a number to indicate that it is a percentage. For instance, if you answered correctly 75 out of questions in total on a test, you'd get a 75%.
Here,
Given :
She determined the combined relative frequency for humor and college. For college students who enjoy comedy, the appropriate conditional relative frequency value is 28%.
For comedies that college students enjoy, she determined the conditional relative frequency. For college students who enjoy comedy, the appropriate conditional relative frequency value is 16%.
For comedies that college students enjoy, she determined the conditional relative frequency. The right response is 28%.
She determined the combined relative frequency for humor and college. The right response is 16%.
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Work out the length of DG in this cuboid.
Give your answer in centimetres (cm) to 1 d.p.
24 cm
H
41 cm
G
22 cm
B
C
Not drawn accurately
the length of DG in this cuboid is 46.53 cm
What is Pythagorean theorem?Pythagorean theorem, the well-known geometric theorem that the sum of the squares on the legs of a right triangle is equal to the square on the hypotenuse (the side opposite the right angle)—or, in familiar algebraic notation, a2 + b2 = c2.
here, we have,
from the given figure,
we get,
by Pythagorean theorem,
DG =√41²+22²
=46.53
hence, the length of DG in this cuboid is 46.53 cm
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Gia had 94 beads. She used 28 beads to make a necklace and 17 beads to make a bracelet. Gia went to the store and bought 36 more beads. How many beads does Gia have now?
Answer:
Gia has 85 beads in the end
Step-by-step explanation:
28+17 beads = 45 beads
94 beads - 45 beads = 49 beads
49 beads + 36 beads = 85 beads
The vertices of triangle FGH has vertices F(-3, 0), G(6, -1) and H (5, -3). Name the vertices of the image reflected across the line y = x.
a. F' (0, -3), G' (-1, 6), H' (-3,5)
b. F' (3, 0), G' (-6, -1), H' (-5, -3)
c. F' (-3, 0), G' (6, 1), H' (5, 3)
d. F' (0, 3), G' (-1, -6), H' (-3, -5)
Answer:
b. F' (3, 0), G' (-6, -1), H' (-5, -3)
The diameter of a vase is now 4 cm. If the diameter increases by a factor of 7/3, what will be the diameter then?
Answer:
9 [tex]\frac{1}{3}[/tex]
Step-by-step explanation:
[tex]\frac{4}{1}[/tex] x [tex]\frac{7}{3}[/tex] = [tex]\frac{28}{3}[/tex] = 9 [tex]\frac{1}{3}[/tex]
Classify The Variable As Nominal Level, Ordinal-Level, Interv Al-Level, Or Ratio-Level Measurement. А Нь Historical Dates From 800 BC to 1800 AD.
Interval
Nominal
Ordinal
Ratio
The given historical date have time difference. So the Historical Dates From 800 BC to 1800 AD is a interval data. So the option a is correct.
In the given question we have to classify the historical dates from 800 BC to 1800 AD.
All real numbers that fall inside any two of the set's numbers are known as members of an interval, which is a set of real numbers.
Data that may be labelled or categorized into groups that are mutually exclusive within a variable is known as nominal data. There is no logical order in which to place these categories.
Ordinal data is a categorical statistical data type when the distances between the categories are unknown and the variables have naturally occurring, ordered categories.
A type of numerical data is ratio data. It evaluates variables on a continuous scale, with equal distance between neighbouring values.
As we can see that the given historical date have time difference. So the Historical Dates From 800 BC to 1800 AD is a interval data. So the option a is correct.
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How to find angles and sides using law of sines
Answer:
by finding the angles and sides using law of sines
Step-by-step explanation:
basically you have to use the law of sines to find the angles and sides, after that you will find the angles and sides using law of sines
The formula for area of a triangle is A = b*h/2. What is the area of the triangle?
Answer:
63
Step-by-step explanation:
b*h/2
b= 18
h=7
(7*18)/2 = 63
when you refer to the meer-kitty survey feedback tab, you are pleased to find that the available data is aligned to the business objective. however, you do some research about confidence level for this type of survey and learn that you need at least 120 unique responses for the survey results to be useful. therefore, the dataset has two limitations: first, there are only 40 responses; second, a meer-kitty superfan, user 588, completed the survey 11 times. as the survey has too few responses and numerous duplicates that are skewing results, what are your options? select all that apply.
Conduct additional surveys to increase the total number of responses.
Remove duplicates from the dataset to eliminate skewing of results
Use caution when interpreting the results and consider them exploratory rather than conclusive
Consider using a different methodology for gathering data, such as focus groups or interviews
Adjust the confidence level for the survey results to account for the smaller sample size
Use a different data analysis technique, such as bootstrapping, to account for the limitations of the dataset
Consider using a sample survey method, like stratified sampling or cluster sampling.
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What is the range of the function f?
f(x) = 3x² + 18x
O A. (-00,00)
O B. (-00, 18]
O C.
-6,00)
OD.
[-27,00)
A
The range for the function f(x) = 3x² + 18x is option d: [-27 , ∞).
What is the range of a function?
A function's range includes all conceivable values for y. Y = f(x) is the formula to determine a function's range . It is only a function in a relation if each x value has exactly one y value.
The given function is -
f(x) = 3x² + 18x
The set of values of the dependent variable for which a function is defined is a function's range.
For a parabola ax^2+bx+c with vertex (xv,yv) -
If a<0 the range is f(x) ≤ yv.
If a>0 the range is f(x) ≥ yv.
Here a=3, and vertex (xv,yv) = (-3,-27)
So, f(x) ≥ -27.
Therefore, the range is [-27 , ∞).
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Find the length of side xx in simplest radical form with a rational denominator.
well, the triangle is an equilateral, so all sides are equal, we know that the segment "x" stems out of the vertex and drops perpendicular to the other side, now, the vertex "x" stems from has two equal sides.
what the hell all that means? well it means that "x" is an altitude and is also an angle bisector and likewise is also cutting the opposite side into two equal halves, meaning that one side is really 8 + 8 = 16, so then
[tex]\stackrel{altitude}{height}\textit{ of an equilateral triangle}\\\\ h=\cfrac{s\sqrt{3}}{2} ~~ \begin{cases} s=\stackrel{length~of}{a~side}\\[-0.5em] \hrulefill\\ s=16 \end{cases}\implies h=\cfrac{16\sqrt{3}}{2}\implies h=8\sqrt{3}[/tex]
the sum of bill and ted's age is 60. in two years, bill will be three times as old as ted. how old are bill and ted now?
That bill age is currently 46 years old, and the ted age is currently 14 years old, according the provided statement.
You ancient soul, how are you?Frequently, having an ancient soul only means you see things differently. There is nothing improper about that. In fact, most individuals would contend that having a distinct outlook on life may be advantageous to both you and those in your life. Depending on how you do it with your understanding, the wider world may be a possibility.
Equations:
B+2 = 3(t+2), B+t = 60, B-t = 4, and B+t = 60
Solve for "t" by subtracting: 4t = 56 t Equals 14 (Ted's current age).
Calculate "b" as follows: b + t = 60 b + 14 = 60 b Equals 46 (Bill's current age).
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Explain what the slope and y-intercept of the linear model represent in the context of the situation.
The slope and y-intercept can provide important information about the relationship between the variables being modeled.
What are the slope and y-intercept?
The slope and y-intercept are both elements of a linear equation of the form y = mx + b, where m represents the slope of the line and b represents the y-intercept of the line.
The slope (m) represents the rate of change of the dependent variable (y) with respect to the independent variable (x). It tells us how much the y-value changes for a given change in the x-value. The slope can be positive, negative, or zero, and it is often represented as a ratio, such as "rise over run" or "rise/run". A positive slope indicates that the line rises as x increases and a negative slope indicates that the line falls as x increases.
The y-intercept (b) represents the point at which the line crosses the y-axis. It tells us the value of y when x = 0. In other words, the y-intercept is the value of the dependent variable when the independent variable is zero.
Hence, the slope and y-intercept can provide important information about the relationship between the variables being modeled.
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describe the three methods used to represent a set. give an example of a set represented by each method.
On solving the provided question, we can say that a set's elements can be arranged in any sequence.
what is set?A mathematical representation of a variety of different things is called a set. Any type of mathematical object may be one of the elements or terms that make up a set. Symbols, numbers, lines, other geometric shapes, points in space, variables, and even other quantities. A proposition in mathematics is a structured group of items that can be expressed as a list or a proposition builder. Curly brackets are commonly used to identify sets. For instance, A = 1, 2, 3, 4 is a set. A set is essentially a group of items that are seen together. The items that make up a set are referred to as its members or elements. The components of a set may consist of any item, but for our purposes, they usually consist of mathematical objects like numbers, functions,
Set Representation
A capital letter indicates a set. For instance, consider sets A, B, N, etc.
Small letters are used to identify the components of a set. Each element is written using curly brackets and a comma in between.
Elements are not repeated in set notation.
A set's elements can be arranged in any sequence.
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Given the circle of Arc RO=125.83 and Arc QO=22.17 what is m/_P? Round answer to the nearest hundredth
The angle formed by the intersection of secant and tangent is as follows:
m∠P = 51.83 degrees.
How to find angles when tangent and secant intersect?A line that touches the circle at a single point is known as a tangent to a circle. Secant is straight line that intersects a curve at two or more points.
Therefore, the measure of the angle formed by the intersection of a tangent and a secant is equals to half the difference of the intercepted arcs.
Hence,
m∠P = 1 / 2 (125.83 - 22.17)
m∠P = 1 / 2 (103.66)
m∠P = 1 / 2 × 103.66
m∠P = 51.83 degrees
Therefore, the angle formed by the intersected secant and tangent is 51.83 degrees.
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for an arbitrary collection of open intervals, will the intersection of all of those intervals always be open?
Yes, the intersection of all of those intervals always be ope
What is set theory?The mathematical concept of well-defined groupings of objects, or sets, that are referred to as members or elements of the set. The only sets that are taken into consideration are those whose members are also sets because pure set theory only deals with sets.
According to information:Any union of open sets, or an unlimited number of open sets, is open. It is open where a finite number of open sets intersect.
A closed set is the complement of an open set (according to the space that the topology is specified on).
Thus, the intersection of all of those intervals always be open.
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Salt Water Solution
One solution contains 2 parts salt to 8 parts water, and another contains 3 parts salt to 5 parts water. How much of each should be mixed together in order to obtain 280 quarts of a solution that is 3 parts salt to 7 parts water?
The amount of each solution that should be mixed together to obtain the desired target solution is;
160 quarts of the solution that contains 3 parts salt to 5 parts water
120 quarts of the solution that contains 2 parts salt to 8 parts water
How to solve Algebra Word Problems?The parameters are;
Solution A contains 2 parts salt to 8 parts water
Solution B contains 3 parts salt to 5 parts water
Target Mixture contains 3 parts salt to 7 parts water:
Expressing the salt concentration in decimal form;
Solution A: 2/(2 + 8) = 2/10
= 0.20 salt
Solution B: 3/(3 + 5) = 3/8
= 0.375 salt
Mixed Solution: s/(3 + 7) = 3/10
= 0.30 salt
Since target mixture is 280 quarts;
If the amount of 0.375 salt present in mixed solution is denoted by x
Then, the amount of 0.20 salt is expressed as;
y = 280 – x
Using a general mixture equation, we will have;
0.375x + 0.20(280 - x) = 0.30(280)
0.375x + 56 - 0.20x = 84
Subtract 56 from both sides of the equation
0.375x - 0.20x + 56 – 56 = 84 – 56
0.375x - 0.20x = 28
0.175x = 28
Divide both sides of the equation by 0.175
0.175x/0.175 = 28/0.175
x = 160
Thus;
y = 280 – x
y = 280 – 160
y = 120
Therefore,
x = 160 quarts of the solution that contains 3 parts salt to 5 parts water
y = 120 quarts of the solution that contains 2 parts salt to 8 parts water
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Look at the line graphed below.
Which equation can be used to graph all the points on the line?
�
=
2
�
y=2x
�
=
�
+
1
y=x+1
�
=
�
−
1
y=x−1
�
=
2
�
−
1
y=2x−1
Answer:
y = x + 1
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
calculate m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (1, 2) and (x₂, y₂ ) = (8, 9) ← 2 points on the line
m = [tex]\frac{9-2}{8-1}[/tex] = [tex]\frac{7}{7}[/tex] = 1
the line crosses the y- axis at (0, 1 ) ⇒ c = 1
y = x + 1 ← equation of line
The triangles below are similar. What is the area of the larger triangle? PLS HELP
Match each of the descriptions with the correct rule for the transformation.
Question 1 options:
Translation 2 left and 2 up
Rotation 90° counterclockwise
Translation 2 right and 2 down
Reflection over the x-axis
1.
(x, y) → (-y, x)
2.
(x, y) → (x + 2, y – 2)
3.
(x, y) → (x, -y)
4.
(x, y) → (x – 2, y + 2)
Answer:
1. Rotation 90° counterclockwise
(x, y) → (-y, x)
2. Translation 2 right and 2 down
(x, y) → (x + 2, y – 2)
3. Reflection over the x-axis
(x, y) → (x, -y)
4. Translation 2 left and 2 up
(x, y) → (x – 2, y + 2)
Step-by-step explanation:
Translation 2 left and 2 up
To translate (move) a point two units to the left, we subtract 2 from its x-value. Similarly, to translate (move) a point two units up, we add 2 to its y-value.
(x, y) → (x – 2, y + 2)Rotation 90° counterclockwise
When rotating a point 90° counterclockwise, the y-value becomes negative, and the x and y switch:
(x, y) → (-y, x)Translation 2 right and 2 down
To translate (move) a point two units to the right, we add 2 to its x-value. Similarly, to translate (move) a point two units down, we subtract 2 from its y-value.
(x, y) → (x + 2, y – 2)Reflection over the x-axis
When a point is reflected over the x-axis, the y-value is negated but the x-value stays the same:
(x, y) → (x, -y)
find the percentage error if 3,750 is used as an approximation to 3,754.
give the answer rounded to four decimal places.
a.1066 %
b. -0.1066 %
c.0011 %
d. 0.1067 %
The percentage error if 3,750 is used as an approximation to 3,754 as calculated is found out to be as , 0.1066%.
We calculate the percentage of error as ,
| Vobs – Vtrue |/ Vtrue× 100%
Therefore the percentage error in this case will be ,
= 3754 - 3750/3750
= 4/3750
=0.1066%
Therefore, the required POE is found out to be as , 0.1066%.
Percent error tells us about the magnitude of our errors while measuring anything , this concept is used in approximation. Lower percentage errors suggest that we are getting close to the original number. A 1% inaccuracy, for example, implies that we were extremely close to the approved number, whereas a 48% error indicates that we were rather far from the genuine value.
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Ditribute to create an equivalent expreion with the fewet ymbol poible. 1/3(3j6)
To find the equivalent expression with the fewest symbols possible for 1/3(3j6),One third of three times the value of six, which is equal to one times the value of two.
1/3(3j6)
= 1/3(3*6)
= 1/3(18)
= 18/3
= 6
= 1j2
To find the equivalent expression with the fewest symbols possible for 1/3(3j6), we need to start by multiplying 3 and 6 together. This gives us the result of 18. Next, we divide 18 by 3, which gives us the result of 6. Finally, we express the result as 1j2, which is the equivalent of 1/3(3j6) with the fewest possible symbols. By following these steps, we can easily calculate the equivalent expression with the fewest symbols. In this case, it is 1j2. The process of calculating the equivalent expression with the fewest symbols is relatively straightforward, but it is important to remember to use the correct order of operations when performing calculations. To ensure accuracy, it is best to work step by step, multiplying 3 and 6 together first and then dividing 18 by 3 to get the final result of 1j2.
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Which is bigger 2 ^845 or 5 ^362?
Answer:
2^845 is greater than 5^362.
Step-by-step explanation:
To compare the two numbers, we can evaluate them using the logarithm function with base 2 and base 5 respectively.
2^845 = 2^(845 * log2(2)) = 2^(845 * 1) = 2^845
5^362 = 5^(362 * log5(5)) = 5^(362 * 1) = 5^362
The logarithm of a number is the exponent to which the base must be raised to give that number. Since logarithm function is a monotonically increasing function, if we compare log base a of x to log base a of y, logarithm of x is greater than y if x is greater than y.
So 2^845 > 5^362 if 845 > 362 * log5(2)
We can calculate log5(2) = log5(2)/log5(2) = 0.6309
so 845 > 362 * 0.6309
845 > 229.8198
so 845 is greater than 229.8198, therefore 2^845 is greater than 5^362.
Answer:
Step-by-step explanation:
2^845 = 2^5(2^7)^120 = 32(128)^120,
5^362 = 5^2(5^3)^120 = 25(125)^120,
2^845 is bigger.
A plane slices a double-napped cone at a slight angle to the base of the cone without intersecting the base. Which conic section is formed? CircleEllipseHyperbolaParabola
Hyperbola will form out from the cone.
Double napped coneThe generator, vertex, and vertical axis are three crucial components of the double-napped cone. Conic sections or conics are the curves that result from the division of a double-napped cone into sections by a plane.
HyperbolaA plane intersects with both parts of a double cone to form a hyperbola, which is an open curve with two branches. The hyperbola will be symmetrical regardless of whether the plane is parallel to the axis of the cone or not.
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Determine the slope and point for the given equation. y−4=2/5(x+3)
Answer:
The slope: 2/5
The point is on the graph below
Step-by-step explanation:
y−4=2/5(x+3)
y - 4 = 2/5x + 3
y = 2/5x + 7
The equation is y = mx + b
m = the slope
m = 2/5
Answer:
[tex]point=(-3,4)\\\\slope=\frac{2}{5}[/tex]
Step-by-step explanation:
[tex]y-y_0=m(x-x_0)[/tex]
[tex]y_o:y-point\\x_o:x-point\\m=slope[/tex]
[tex]y-4=\frac{2}{5}(x+3) \\\\y_0=4\\x_0=-3\\\\slope=\frac{2}{5}[/tex]