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3 years ago

PLZZZZZZ HELP

Mathematics

2 answers:

marusya05 [52]3 years ago

6 0

It’s B the answer is B!

otez555 [7]3 years ago

3 0

Answer:

Step-by-step explanation:

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The average and standard deviation of a measurement is 15.0 ± 5.0. if 100 students measured the value, how many would you expect

AURORKA [14]

Solution: We are given:

$\mu=15, \sigma=5$

Using the empirical rule, we have:

$\mu \pm \sigma$ covers 68% of data.

Also the percentage of values below mean = Percentage of values above mean = 50%

Now, let's find the z score for x=20

$z=\frac{20-15}{5}=1$

Therefore, the percentage of values greater than 1 standard deviation above mean $50\% - \frac{68\%}{2} =50\%-34\%=16%$

Expected number of students = 16% of 100 = 16

4 0

3 years ago

A polygon has an interior angle sum of 3060° how many sides must the polygon have?

AVprozaik [17]

Sum of interior angles=(n-2)180
3060=(n-2)180
3060/180=n-2
17=n-2
n=17+2
n=19..

5 0

3 years ago

Read 2 more answers

What is the distance from 10 To 0

kicyunya [14]

Answer:

Hope this helps :)

5 0

3 years ago

A) -126.5 degrees Fahrenheit

lawyer [7]

I think is B sorry if I am worng

8 0

3 years ago

The volume of a cube is V= S^3 where V is the volume and s is the length of one side what is the volume of a cube if the length

sammy [17]

The volume of cube is 1000 cubic feet

Solution:

Given that,

The volume of cube is given by formula:

$V = s^3$

Where,

V is the volume of cube

"s" is the length of one side

What is the volume of a cube if the length of a side s is 10 feet

Given, s = 10 feet

Substitute s = 10 in given formula,

$V = 10^3\\\\V = 10 \times 10 \times 10\\\\V = 1000$

Thus volume of cube is 1000 cubic feet

7 0

3 years ago