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3 years ago

7

How do I do standard deviation ?

1 answer:

Marianna [84]3 years ago

6 0

<span>Work out the Mean (the simple average of the numbers)Then for each number: subtract the Mean and square the result.Then work out the mean of those squared differences.<span>Take the square root of that and we are done!</span></span>

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Mrs. Chen's students are making and decorating gift boxes for a nursing home. If the boxes are 7 inches wide, 7 inches long, and

pishuonlain [190]

Answer:

$84\text{ in}^2$ .

Step-by-step explanation:

We have been given that Mrs. Chen's students are making and decorating gift boxes for a nursing home. The boxes are 7 inches wide, 7 inches long, and 7 inches high. We are asked to find the amount of cardboard that is needed for each box.

We will use surface area of cuboid formula to solve our given problem.

$SA=2(lw+lh+hw)$ , where,

l = Length,

w = Width,

h = Height

$SA=2(7\text{ in}\cdot7\text{ in} +7\text{ in}\cdot7\text{ in}+7\text{ in}\cdot7\text{ in})$

$SA=2(14\text{ in}^2+14\text{ in}^2+14\text{ in}^2)$

$SA=2(42\text{ in}^2)$

$SA=84\text{ in}^2$

Therefore, Mrs Chen needs 84 square inches of cardboard.

3 0

3 years ago

What is five fractions equivalent to 25/100

Alenkasestr [34]

1/4 is one of the fractions

6 0

3 years ago

Help me, the PDF file is posted below

andrew-mc [135]

It’s -5, always look at your rise and run, they will help!

4 0

3 years ago

43 centimeters equals blank or blank meters

Montano1993 [528]

1meter=100centimeter
1centimeter=1/100meter

so cm times 1/100=meters
43 times 1/100=43/100meters aka 0.43 meters
43/100 or 0.43 meters

6 0

3 years ago

Read 2 more answers

Please help you can do both of you want but I need the top one

KonstantinChe [14]

Answer:

For the first answer, I believe it to be A.

Step-by-step explanation:

For the top question, the only one that could come after 0.038 would be A.

5 0

3 years ago

Read 2 more answers