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Leviafan [203]
2 years ago
14

Pls help me on this problem as soon as possible(if u don’t know pls do not answer

Mathematics
1 answer:
IgorC [24]2 years ago
4 0
8 verticals i’m pretty sure if not uh yea
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The heights of 1000 students at a local school were recorded and found to be approximated by the normal curve below. Which answe
Vlada [557]

Answer:

The mean of the distribution of heights of students at a local school is 63 inches and the standard deviation is 4 inches.

Step-by-step explanation:

The normal curve approximating the distribution of the heights of 1000 students at a local school is shown below.

For a normal curve, the mean, median and mode are the same and represents the center of the distribution.

The center of the normal curve below is at the height 63 inches.

Thus, the mean of the distribution of heights of students at a local school is 63 inches.

The standard deviation represents the spread or dispersion of the data.

From the normal curve it can be seen that values are equally distributed, i.e. the difference between two values is of 4 inches.

So, the standard deviation is 4 inches.

7 0
3 years ago
Find the measure of the indicated angle that makes lines uand v parallel.
Rzqust [24]
1. 135 ( corresponding angles)
2. 66 ( corresponding angles)
3. 118( alternative interior angles)

7 0
3 years ago
Find the missing number in the proportion.
Soloha48 [4]

Answer: 7

Step-by-step explanation: Cross multiply, so 15 times x and 21 times 5. 21 times 5 is 105 then you divide by 15 which gives you 7.

8 0
3 years ago
write a function that has a greater rate of change than one function but a smaller rate of change than the other function
LenaWriter [7]
The function y = 5x has a rate of change that is in between the equation y = 4x and y = 6x.

In an equation, the rate of change is also called the slope. It is the amount that a number is increasing by. We put that value in front of the x in most equations.

In the equal that I gave, the 5 is in between the rates of 4 and 6.
4 0
3 years ago
Justify your answer
BaLLatris [955]

Answer:

8cm

Step-by-step explanation:

x is similar to the side 12cm.

We know the second triangle is rotated counter-clockwise from the first because similar triangles have the same angle measurements.

Since the angle in the first triangle between 9cm and 15cm is 53°, it can't be similar to the angle between x and the hypotenuse in the second triangle.

Find the scale factor:

Triangle 1/Triangle 2

Divide two similar sides.

6/9 = 2/3

Multiply the scale factor by the similar side to find x.

x = 12*(2/3)

x = 8

7 0
3 years ago
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