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2 years ago

Answer please fast Do it now please, come on do it come on

Mathematics

1 answer:

trasher [3.6K]2 years ago

8 0

Answer:

C 42yd

Step-by-step explanation:

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Solve for r. s=2πrh

Butoxors [25]

Answer:

s/2πh =r

Step-by-step explanation:

s=2πrh

Divide both sides by 2πh to isolate r

s/2πh =2πrh /2πh

s/2πh =r

8 0

3 years ago

lynn regulary works 40 hours a week and earns 16 per hour. she receive time and a half pay for each hour of overtime she works.

Crazy boy [7]

Lyn made 16 per hour for 40 hours plus $24 per hour for 3 hours

5 0

3 years ago

Wren has a 30% chance of being selected as the president of the school sports club and a 80% chance of being elected editor of t

andre [41]

I think 24 might be the answer if not its 15

7 0

3 years ago

the performance score of 10 adults is recorded, and the results are 83 87 90 92 93 100 104 111 115 121 find the standard deviati

luda_lava [24]

Answer:

The standard deviation of the data set is $\sigma = 12.7906$ .

Step-by-step explanation:

The Standard Deviation is a measure of how spread out numbers are. Its symbol is σ (the greek letter sigma)

To find the standard deviation of the following data set

$\begin{array}{cccccccc}83&87&90&92&93&100&104&111\\115&121&&&&&&\end{array}$

we use the following formula

$\sigma = \sqrt{ \frac{ \sum{\left(x_i - \overline{X}\right)^2 }}{n-1} }$

Step 1: Find the mean $\left( \overline{X} \right)$ .

The mean of a data set is the sum of the terms divided by the total number of terms. Using math notation we have:

$Mean = \frac{Sum ~ of ~ terms}{Number ~ of ~ terms}$

$Mean = \frac{Sum ~ of ~ terms}{Number ~ of ~ terms}=\frac{83+87+90+92+93+100+104+111+115+121}{10} \\\\Mean = \frac{996}{10} =\frac{498}{5}=99.6$

Step 2: Create the below table.

Step 3: Find the sum of numbers in the last column to get.

$\sum{\left(x_i - \overline{X}\right)^2} = 1472.4$

Step 4: Calculate σ using the above formula.

$\sigma = \sqrt{ \frac{ \sum{\left(x_i - \overline{X}\right)^2 }}{n-1} } = \sqrt{ \frac{ 1472.4 }{ 10 - 1} } \approx 12.7906$

3 0

3 years ago

Which points on the graph represent values that could be in the table? A B C D

Dafna11 [192]

Answer:

uhhh

Step-by-step explanation:

uh I don't see the graph

4 0

3 years ago

Read 2 more answers