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3 years ago

What is the z score associated with 75 percentile

Mathematics

1 answer:

ddd [48]3 years ago

6 0

Answer:

First, determine how many standard deviations above the mean one would have to be to be in the 75th percentile. This can be found by using a z table and finding the z associated with 0.75. The value of z is 0.674. Thus, one must be .674 standard deviations above the mean to be in the 75th percentile

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Based on the diagram what is the length of AC?

sweet [91]

Answer: 12.4

Step-by-step explanation: AC is = to 2 times whatever FD is so 2(6.2) 12.4

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3 years ago

Whats an inverse function

vichka [17]

Answer:

In mathematics, an inverse function (or anti-function) is a function that "reverses" another function: if the function f applied to an input x gives a result of y, then applying its inverse function g to y gives the result x, and vice versa, i.e., f(x) = y if and only if g(y) = x.

Step-by-step explanation:

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3 years ago

If two angles are complementary and one angle measures 89, what is the measure of the other angle?

Misha Larkins [42]

Complimentary means they add up to 90

x is the angle we're looking for

x + 89 = 90

Subtract 81

x = 90 - 89

x = 1

A is the correct answer.

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3 years ago

Find the x - and y-intercepts of the graph of the linear equation 2x + 3y = 12. <br>

finlep [7]

1. To find the y-intercept, replace x with zero.

2(0)+3y=12
= 3y=12

Divide both sides by 3,
3y/3=y 12/3=4

So Y-intercept is: 4

2. To find the X-intercept, replace y with zero.

2x + 3(0) = 12
2x=12

Divide both sides by 2
2x/2=x. 12/2= 6

So, x-intercept: 6
y-intercept: 4

4 0

3 years ago

Write the slope-intercept form of the equation of the line

Igoryamba

The slope-intercept form of the equation of the line described is y = 3/4x - 4.

<h3>What is a slope?</h3>

The slope of a line simply refers to the gradient of a line and it's typically used to describe both the ratio, direction and steepness of an equation of a straight line.

<h3>How to calculate the slope of a line?</h3>

Mathematically, the slope of a straight line can be calculated by using this formula;

$Slope, m = \frac{Change\;in\;y\;axis}{Change\;in\;x\;axis}\\\\Slope, m = \frac{y_2\;-\;y_1}{x_2\;-\;x_1}$

Mathematically, the standard form of the equation of a straight line is given by;

y = mx + c

Where:

x and y are the points.
m is the slope.
c is the intercept.

The partial equation for the perpendicular line is given by:

y = 3/4x + c

At point (8, 2), we have:

2 = 3/4(8) + c

2 = 6 + c

c = 2 - 6

c = -4.

Therefore, the slope-intercept form of the equation of the line described is y = 3/4x - 4.

Read more on slope-intercept form here: brainly.com/question/1884491

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8 0

2 years ago