PIZZA estimate the area of the top of a round pizza that has a diameter of 16inches.round to the nearest tenth.

2 answers:

8 0

The formula for finding the area of a circle is A = pi X radius squared

To find the radius you have to half the diameter (16 divided by 2 = 8)

Then you can square the radius (8 squared = 64)

Now you can substitute in this would be: area = pi X 64
If you use a calculator (as pi is an irrational number) the answer to one tenth would be 201.1 (201.06)
If you use simplified pi (3.14) the answer to one decimal place would be 201.0 (200.96)

AleksandrR [38]2 years ago

3 0

So, we're finding the area of a circle.
The formula for the area of a circle is: 3.14r^2.
So, take the radius, half of the diameter, 8, and square it.
8^2 = 64.
Then, take 64, and multiply it by 3.14, or simplified pi.
64 x 3.14 = 200.96
The answer is 201 inches.

You might be interested in

How to divid step by step on this equation 5/7÷3/4=

Shkiper50 [21]

Keep, Change, Flip

5/7 x 4/3 = ?

5 0

3 years ago

Read 2 more answers

A bolt has 16-1/2 turns per inch. How many bolts would be in 2-1/2 inches?

ohaa [14]

Answer:

41 1/4

Step-by-step explanation:

Change 16 1/2 to a mixed number

16 1/2 = (2*16+1)/2 = 33/2

Change 2 1/2 to a mixed number = (2*2+1)/2 = 5/2

Multiply the turns per inch by the inches

33/2 * 5/2 =165/4

Change this back to a mixed number

4 goes into 165 41 times

41*4 = 164 there is 1 left over

41 1/4

6 0

3 years ago

Read 2 more answers

Which one of the following is always true?a. The coefficient of variation measures variability in a positively skewed data set r

Tom [10]

Answer:

C. The coefficient of variation is a measure of relative dispersion that expresses the standard deviation as a percentage of the mean, for any data on a ratio scale and an interval scale

Step-by-step explanation:

Th Coefficient of Variance is a measure of dispersion that can be calculated using the formula:

$CV = \frac{\sigma_{x} }{\mu_{x} } * 100%$

Where $\sigma{x}$ is the Standard Deviation

and $\mu_{x}$ is the sample mean

From the formula written above, it is shown that the Coefficient of Variation expresses the Standard Deviation as a percentage of the mean.

Coefficient of variation can be used to compare positive as well as negative data on the ratio and interval scale, it is not only used for positive data.

The Interquartile Range is not a measure of central tendency, it is a measure of dispersion.

3 0

2 years ago

Find the product. (n 7)2 n² 14n 14 2n² 14n 49 n² 14n 49.

Marianna [84]

The product of $\rm (n+7)^2$ is $\rm n^2+14n+49$ .