Answer:
30.8 degrees
Step-by-step explanation:
First, find the missing angles on the triangle to the right:
*arccosine(4.5/7) = 49.99
This is the angle between sides 7 and 4.5.
Next, using 49.99 as a reference angle, find the missing side:
tan(49.99) x 4.5 = 5.36
Next, we use arctan to find the missing angle:
*arctan(5.36/9) = 30.7761482323
Or 30.8 degrees.
*A fraction, not division ;-;
Please help ASAP and send me the solutions!! I really need it for homework. Thank you!!
To make x the subject of the expression, we have; x = 16y^2 - 5.
What is the Subject of formula?Subject of formula is a topic in mathematics which involves expressing an alphabet in terms of other alphabets in the given expression. From the given question, to make x the subject implies expressing x in terms of other variables in the given expression.
So that, [tex]\frac{\sqrt{x + 5} }{4}[/tex] = y
square both sides of the expression to have;
(x + 5)/ 16 = y^2x + 5
= 16y^2x = 16y^2 - 5
Therefore to express x as a subject of formula for the given expression, we have;
x = 16y^2 - 5
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Assuming that the y-axis tick marks will be separated by 50 (50, 100, 150, and so on), what is the largest value that should appear on the y-axis?
Assuming that the y-axis tick marks will be separated by 50 (50, 100, 150, and so on). The largest value that should appear on the y-axis is 400.
Largest value:
The maximum value of a dataset is often called the maximum value (max for short), and the minimum value is often called the minimum value (or min). The difference between the maximum and minimum values, sometimes called the range, is calculated by subtracting the minimum value from the maximum value.
Dependent and Independent Variables for ChartResearchers varied the time of the experiment to measure the activity of the enzyme on glucose-6-phosphate (substrate). This happened because the enzyme acted on glucose-6-phosphate to produce glucose and a phosphate ion (Pi).
The concentration of phosphate ions was measured in the experiment. Therefore, time is the independent variable plotted on the x-axis and phosphate ion concentration is the dependent variable plotted on the y-axis.
The measured phosphate ion concentration ranges from 0 to 355. The maximum possible value is 355, so the y-axis range must be between 0 and 400. So the maximum value on the y-axis is 400.
50 units should separate the y-axis ticks. All tick marks are evenly spaced.
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a student surveyed 100 students and determined the number of students who take statistics or calculus among seniors and juniors. here are the results. a 3-column table with 2 rows. column 1 has entries senior, junior. column 2 is labeled statistics with entries 15, 18. column 3 is labeled calculus with entries 35, 32. the columns are titled type of class and the rows are titled class. let a be the event that the student takes statistics and b be the event that the student is a senior. what is p(ac or b)? 0.18 0.68 0.82 0.97
The probability of a senior student taking statistics or calculus is 0.82. This is calculated by adding the probability of a senior student taking statistics (0.15) and a senior student taking calculus (0.35).
p(a or b) = p(a) + p(b) - p(a and b)
p(a) = 15/100 = 0.15
p(b) = 35/100 = 0.35
p(a and b) = 15/100 = 0.15
p(a or b) = 0.15 + 0.35 - 0.15 = 0.82
The probability of a senior student taking either statistics or calculus is 0.82. This is calculated by adding the probability of a senior student taking statistics (0.15) and a senior student taking calculus (0.35) and subtracting the probability of a senior student taking both statistics and calculus (0.15). The probability of a senior student taking statistics is calculated by dividing the number of seniors taking statistics by the total number of students surveyed (15/100 = 0.15). The probability of a senior student taking calculus is calculated by dividing the number of seniors taking calculus by the total number of students surveyed (35/100 = 0.35). The probability of a senior student taking both statistics and calculus is calculated by dividing the number of seniors taking both statistics and calculus by the total number of students surveyed (15/100 = 0.15). Therefore, the probability of a senior student taking either statistics or calculus is 0.82.
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What is m<3? Please help
Angle m∠3 is 79degree
What is linear pair?
Linear pair of angles are produced when two lines intersect each other at a point. The sum of angles of the linear pair is always 180 degrees.
Given;
m∠1= (x+70)
m∠2= (5x+54)
Here, m1=m2
substituting the values of m1 and m2
x+70=5x+54
70+54=5x-x
124=4x
x=31 substituting in m2
m2=101
Now, m2+m3=180 (linear pair of angles)
101+m3=180
m3=79degree
So, the measure of angle m3 will be 79degree.
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categorical data . a. are always nonnumeric b. indicate either how much or how many c. are always numeric
Categorical data can be either numeric or nonnumeric. Numeric data includes values such as integers, decimals, and percentages. Nonnumeric data includes values such as text, dates, and names.
Categorical data is a type of data that can be either numeric or nonnumeric. Numeric data includes values such as integers, decimals, and percentages, while nonnumeric data includes values such as text, dates, and names. Categorical data is often used to indicate either how much or how many of something there is. For example, a survey might ask respondents to choose between several options, such as “none,” “some,” and “many,” which are all nonnumeric values, but can still provide useful information about how much of something a respondent has. In addition, categorical data can also be numeric, such as when data is collected on the number of hours a respondent works each week. Categorical data is useful for understanding the characteristics of a population in a more qualitative way.
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What is the midpoint formula in coordinate geometry class 10?
For class 10, the midpoint formula in the coordinate geometry for the endpoints ( x₁ , y₁ ) and ( x₂ , y₂ ) is given by:
( x , y ) = [( x₁ + x₂)/2 , (y₁ + y₂)/2].
As given in the question,
In the coordinate geometry of class 10,
To get the x and y coordinate of the midpoint following points need to follow:
Let us consider the endpoints of any line segment be given by ( x₁ , y₁ ) and ( x₂ , y₂ ).To get the x coordinate add x₁ and x₂ then divide it by 2.To get the y coordinate add y₁ and y₂ then divide it by 2.In standard form midpoint formula is written as ( x , y ) = [( x₁ + x₂)/2 , (y₁ + y₂)/2].Therefore, in the coordinate geometry of class 10 the midpoint formula is given by ( x , y ) = [( x₁ + x₂)/2 , (y₁ + y₂)/2].
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wei buys a lottery ticket. the ticket has several ways to win. the table below shows the different ways to win, the probability of winning each way, and how much money each win results in. every time wei buys a ticket, she can win money each way. ways to win probability winnings way 1 68% $0 way 2 24% $0 way 3 6% $5 way 4 2% $25 given the probabilities and payout values in this table, what is the expected value of wei's ticket?
0.80 is the expected value of wei's ticket. This can be solved by using the concept of probability.
What is probability?The word "probability" derives from the Latin word "probitatem," which means "credibility, likelihood," from the noun probabilis in the 14th century (see probable). The phrase was first used in a mathematical meaning in 1718.
A probability is a number that expresses the possibility or likelihood that a specific event will take place. Probabilities can be stated as proportions with a range of 0 to 1, or as percentages with a range of 0% to 100%.
As, we know
E(x) = x₁. p(x₁) + x₂ . p(x₂) + ....... + x(n). p(x(n))
From the table it is shown that,
E(x) = (68% × 0) + (24% × 0) + (6% × 5) + (2% × 25)
or, E(x) = 0.80
then the expected value of Wei's ticket is: 0.80
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if f(x)=3x+5 and g(x)=x-2 , what is ( f • g)(x)
Answer:
1/3
Step-by-step explanation:
f(gx)-2
formula use the solve this problem
Work out the area of a rectangle with base,
b
= 26mm and perimeter,
P
= 68mm.
Please help me
Answer:
208 mm
Step-by-step explanation:
A = Area. P = Perimeter. B = base.
Let's say H = Height
P = 2B + 2H
Now we already know the perimeter is 68 mm, so P = 68:
68 = 2B + 2H
In addition, we know that the base is 26 mm, so B = 26:
68 = 2(26) + 2H
68 = 52 + 2H
16 = 2H ==> subtract 52 on both sides
H = 8 ==> the height of the rectangle is 8 mm
A = B * H
A = 26 * 8 ==> plugin B=26 and H=8 into the Area formula
A = 208 ==> simplified
Hence, the area is 208 mm.
Please help me solve the variable for these two diagrams (please show work if any)
The measure of the angle x in the isosceles triangles are;
x = 44°
1) x = 80°
What is an isosceles triangle?An isosceles triangle is a triangle that has a pair of congruent sides and a pair of congruent angles.
The measure of the specified angle are found as follows;
The isosceles triangle that has 92° as the exterior angle, indicates that we get;
Base angles of the isosceles triangle = (180° - 92°)/2 = 44°
Vertical angles theorem, indicates that the vertical angle and the base angles of the second isosceles triangle are congruent.
Base angles of the second isosceles triangle = 44°
Angle x is a base angle of the second isosceles triangle, therefore, angle x = 44°1) The angle adjacent to the angle x is a base angle of the isosceles triangle that has a base angle of 70°
The vertex angle of the isosceles triangle = 180° - 2 × 70° = 40°
The measure of the section of the indicated 90° angle that is a part of the isosceles triangle that has angle x as the vertex angle = 90° - 40° = 50°
The measure of angle x found using the relationship between the angles in an isosceles is; x = 180° - 2 × 50° = 80°
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does this approximate a normal distribution? does this confirm the first part of the central limit theorem?
No, this does not approximate a normal distribution.
This does not confirm the first part of the Central Limit Theorem, which states that the sum of a large number of independent random variables will approximate a normal distribution. To calculate the probability of a normal distribution, we need to calculate the mean and standard deviation of the sample. We can then use this information to calculate the z-score of a given value in the sample. The z-score will tell us how many standard deviations away from the mean a certain value is. If the z-score follows a normal distribution then the sample approximates a normal distribution. However, if the z-score does not follow a normal distribution then the sample does not approximate a normal distribution.
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how is the size of a sample related to the spread of the sampling distribution
The spread of the sampling distribution is equal to the standard deviation divided by the square root of the sample size.
What is sample size?
The sample size is defined as the number of observations used to estimate a given population. The population was used to determine the size of the sample. The process of selecting a subset of individuals from a population to estimate the characteristics of the entire population is known as sampling. For analysis, the number of entities in a subset of a population is chosen.
The spread of the sampling distribution is proportional to the spread of the sample and its size. We calculate the spread of the sampling distribution as the population standard deviation divided by the square root of the sample size.
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Find the slope of the line graphed below.
Answer:
Step-by-step explanation:
Uh sorry but there is no picture here
Answer:
no graph is attached
Step-by-step explanation:
I need help with these 4 questions
Answer:
1st one: y=x+2
2nd one: y=x/4
3rd one: y=3x
4th one: y=x-5
find the difference (12m + 5) - (3m - 2) i nee help asap
Answer:
(12m + 5 ) - (3m - 2)
12m + 5 - 3m + 2
12m - 3m + 5 +2
9m + 7
Answer:
[tex] \sf \: 9m + 7 [/tex]
Step-by-step explanation:
Given expression,
→ (12m + 5) - (3m - 2)
Let's simplify the expression,
→ (12m + 5) - (3m - 2)
→ 12m + 5 - 3m + 2
→ (12m - 3m) + (5 + 2)
→ (9m) + (7)
→ 9m + 7
Hence, the answer is 9m + 7.
In the cafeteria's refrigerator, there are 11 bottles of orange juice and 22 bottles of apple juice. What is the ratio of bottles of orange juice to bottles of apple juice in the cafeteria's refrigerator?
The ratio of bottles of orange juice to bottles of apple juice in the cafeteria's refrigerator is 2 : 1.
What are ratio and proportion?In its most basic form, a ratio is a comparison between two comparable quantities.
There are two types of proportions One is the direct proportion, whereby increasing one number by a constant k also increases the other quantity by the same constant k, and vice versa.
If one quantity is increased by a constant k, the other will decrease by the same constant k in the case of inverse proportion, and vice versa.
Given, In the cafeteria's refrigerator, there are 11 bottles of orange juice and 22 bottles of apple juice.
Therefore, The ratio of bottles of orange juice to bottles of apple juice is,
orange juice : apple juice = 22 : 11.
orange juice : apple juice = 2 : 1.
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work out the circumference of a circle with a diameter 1.8cm . take pi to be 3.142 and give your answer to 1 decimal place ?
[tex]y= 3x + 13\\y=7x + 17[/tex]
Answer:
Hi, I'm Za'Riah! I will gladly assist you with your problem. (see explanation)
Step-by-step explanation:
Let's solve your system by substitution.y=3x+13; y=7x+17
Step: Solve y = 3x + 13 for y:
y=3x+13
Step: Substitute 3x + 13 for y in y = 7x + 17 :
y=7x+17
3x+13= 7x+17
3x+13+-7x=7x+17+-7x (Add -7x to both sides)
-4x+13=17
-4x+13+-13=17+-13 (Add -13 to both sides)
-4x=4
-4x/-4 = 4/-4 (Divide both sides by -4)
x=-1
Step: Substitute -1 for x in y=3x+13:
y=3x+13
y=(3)(-1)+13
y=10(simplify both sides of the equation)
Answer:
x= -1 and y= 10
(Hope this helped!)
Will the triangle formed with side 6 cm 8 cm and 10 cm be a right angle triangle?
Answer:
Step-by-step explanation:
Yes, by side 6cm, 8cm, 10cm be a right angle triangle.
explain, by pythagoras theorem,
(hypotenuse)^2 = (perpendicular)^2 + (base)^2
=> (10)^2 = (6)^2 + (8)^2
=> 100 = 36 + 64
=> 100 = 100
so, it is verifying the phythagoras theorem, hence it will form a right angle triangle with side 6cm, 8cm, and 10cm.
What is the slope of the line that passes through (8, 3) and (10, 3)?
explan how you got the answer
Answer:
[tex]m = \frac{y2 - y1}{x2 - x1} where \: m \: is \: slope[/tex]
(8,3)=(x1,y1)
(10,3)=(x2, y2)
Now,
[tex]m = \frac{3 - 3}{10 - 8} \\ = 0[/tex]
Find the range of the following functions.
i) [tex]\frac{x}{2+x^{2} }[/tex]
100 points for correct answers
i need it ASAP, thank u ^_^
Answer:
Step-by-step explanation:
y = x/(2+x²)
2y + yx² = x
yx² - x + 2y = 0
(1±√(1-8y²))/2y
Now, 1 - 8y² ≥ 0
8y²≤1
y² ≤ 1/8
y ∈ (-1/2√2, 1/2√2)
Thanks
The area of a rectangle is represented by 32X exponent three it’s a length of a rectangle is 4X then the width is 
Answer:We know that the area of a rectangle is represented by the product of its length and width, so the equation for the area of the rectangle is:
A = l * w
We also know that the area of the rectangle is given as 32X^3 and the length of the rectangle is 4X. Therefore, we can substitute these values into the equation:
32X^3 = (4X) * w
To find the width of the rectangle, we can divide both sides of the equation by 4X:
w = 32X^3 / 4X
Simplifying the equation, we can get the value of w:
w = 8X^2
So the width of the rectangle is 8X^2
Step-by-step explanation:
(will give brainly if possible)
What is the area of the image of the rectangle under this transformation?
Answer:
3600 square units
Step-by-step explanation:
From inspection of the given diagram, the area of the rectangle is:
[tex]\implies \sf Area=9 \cdot 4 = 36\; units \; squared[/tex]
Given matrix:
[tex]\left[\begin{array}{rr}5&10\\-8&4\end{array}\right][/tex]
To find the area scale factor, find the absolute value of the matrix determinant:
[tex]\implies \left| \:5 \cdot 4 - 10 \cdot (-8) \right|=\left|20+80\right|=100[/tex]
Therefore, the area of the image of the rectangle under the given matrix transformation is:
[tex]\implies \sf Area=36 \cdot 100=3600\;square\;units[/tex]
if it takes 42 minutes to load 3 1/2 trucks, how many minutes will it take to load 6 1/2 trucks? 36 78 84 96 backnext
The information provided indicates that it will take 78 minutes to load.
How are math and time related?Time may be described in mathematics as a continuing and continuous series of events that take place one after another, from the past through the present, and into the future. The length of events or the gaps between them may be measured, compared, or even ordered using time.
If loading three and a half trucks takes 42 minutes, loading one truck will take 42 / 3.5 minutes, or 12 minutes. The time needed to load is calculated by multiplying the minutes per vehicle by 6.5. In this scenario, it would take 78 minutes to load 6 1/2 trucks (12 x 6.5). The time taken is calculated using the formula t = 12n, where n indicates the number of trucks and t is the time in minutes.
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circles with centers at o and p have radii 2 and 4, respectively, and are externally tangent. points a and b on the circle with center o and points c and d on the circle with center p are such that ad and bc are common external tangents to the circles. what is the area of the concave hexagon aobcpd?
Area of concave hexagon = 24
To find the area of the concave hexagon, we can divide it into two triangles and a rectangle. The side lengths of the rectangle are the difference of the radii of the two circles (4-2=2) and the distance between the centers of the circles, which can be found using the Pythagorean theorem. Using that we can find the area of the rectangle and the two triangles. The area of the hexagon is the sum of the areas of these three shapes.
In the given case, let the distance between the centers of the circles be 'd'.
d^2 = (4+2)^2
d = √((4+2)^2) = √(36) = 6
Area of rectangle = 26 = 12
Area of each triangle = (1/2)(2d) = (1/2)(2*6) = 6
Area of hexagon = 12 + 2*6 = 24
Area of concave hexagon = 24
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Which point on the number line shows the position of square root 38
The point on the number line is between 6 and 7
How to determine the location of the pointFrom the question, we have the following parameters that can be used in our computation:
Number = square root 38
The square root of 38 is approximately 6.16441400296898.
This number is between 6 and 7 on the number line, closer to 6.
Also, it should be noted that
It's not a rational number so it's not on the number line with integers, but it can be represented as a decimal or as an irrational number.
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The function y = 3p^3 – 8p^2 + 4p represents the population size of mackerel y based on the number of pounds of plastic p found in the ocean.
Find the zeros of the function and explain their meaning within the context of the situation.
*PLS ANSWER QUICKLY* the zeros of the function are {0,2/3,2} I know the zeros are the pounds but explain further pls. tank u
The zeros of the polynomial y = 3p³ - 8p² + 4p are calculated to be 0, 2/3, and 2.
What are Zeros or Root of FunctionThe zeros of a function, sometimes referred to as the roots or solutions, are the values of the independent variable (x) for which the function equals zero. In other words, these are the x-coordinates of the points where the graph of the function crosses the x-axis. You can get the zeros of a function by setting its value to zero and then figuring out what value(s) of x the equation needs.
For example, if the function is f(x), you would set f(x) to 0 and then find x:
For example, if the function is f(x), you would set f(x) to 0 and then find x:
f(x) = x² + 2x - 3 = 0
This equation can be written as (x-3)(x+1) = 0.
Inferring from the x-values that x - 3 = 3 or x + 1 = -1, x² + 2x - 3 = -1, 3
As a result, the zeros of the function f(x) = x² + 2x - 3 are -1 and 3.
In the issue at hand, y = 3p³ - 8p² + 4p
y = p(3p - 2)(p - 2) (p - 2)
Taking the zeros,
0 = p(3p - 2)(p - 2)
p = 0,
3p - 2 = 0,
p = 2 / 3,
p - 2 = 0, p = 2
The zeros of the polynomial or roots are (0, 2/3, and 2).
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A solid box with height 20cm, width 80cm and length 10cm needs to be painted.
The paint costs £0.04 per cm2.
How much will it cost to paint the outside of the box?
The amount it would cost to paint the outside of the box is £208
Calculating the cost to paint a boxFrom the question, we are to determine calculate how much it would cost to paint the outside of the box
To do this, we will calculate the surface area of the box
The surface area of a box is given by
S.A = 2(lw + lh + wh)
Where S.A is the surface area
l is the length
w is the width
and h is the height
From the given information,
l = 10 cm
w = 80 cm
h = 20 cm
Thus,
S.A = 2(10×80 + 10×20 + 80×20)
S.A = 2(800 + 200 + 1600)
S.A = 2(2600)
S.A = 5200 cm²
Also, from the given information
The paint costs £0.04 per cm2
Thus,
The cost is £0.04 × 5200
= £208
Hence, the cost is £208
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Math work………………………………………………………………………………………………………..
The equation of the line that passes through (3, 19) and (9, 25) will be y = x + 16.
What is the equation of a line passing through two points?Let the equation of the line pass through (x₁, y₁) and (x₂, y₂).
Then the equation of the line is given as,
[tex]\rm (y - y_2) = \left (\dfrac{y_2 - y_1}{x_2 - x_1} \right ) (x - x_2)[/tex]
The points are given below.
(3, 19) and (9, 25)
The equation of the line that passes through (3, 19) and (9, 25) will be given as,
(y - 25) = [(25 - 19) / (9 - 3)](x - 9)
y - 25 = (6/6)(x - 9)
y - 25 = x - 9
y = x - 9 + 25
y = x + 16
The equation of the line that passes through (3, 19) and (9, 25) will be y = x + 16.
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1.A prime number is a number which has exactly two factors - 1 and itself. Suhani says, “The only even prime number is 2". Is she right?
Answer:
yes, because there aren't other even prime numbers.
Step-by-step explanation:
2 Is the only even prime number
3 is odd
5 is odd
7 is odd
11 is odd
13 is odd
And so on