Ask question

Ask question

All categories

3 years ago

13

Calculate the area of a circle with a diameter of 8.2 inches. show or explain your reasoning.

1 answer:

Troyanec [42]3 years ago

3 0

Answer:

Area = 52.81 square inches

Step-by-step explanation:

$Diameter = 8.2in\\\\Radius = \frac{diameter}{2}=\frac{8.2}{2}=4.1in\\\\Area \ of \ a \ circle = \pi r^2 = \pi \times 4.1^2 = 52.81 in^2$

You might be interested in

A chicken salad recipe calls for 1 8

NARA [144]

Answer: $1.0625\ pounds$ or $\frac{17}{16}\ pounds$

Step-by-step explanation:

The complete exercise is: "A chicken salad recipe calls for $\frac{1}{8}$ pound of chicken per serving . How many pounds of chicken are needed to make $8\frac{1}{2}$ serving".

You can convert the Mixed number to a Decimal number. Divide the numerator 1 by the denominator 2 and then add the quotient to the Whole number. Then, you get:

$8+0.5=8.5$

Now divide the numerator 1 by the denominator 8 to write the fraction to a Decimal number. Then:

$\frac{1}{8}= 0.125$

Let be "x" the amount of pounds are needed to make $8\frac{1}{2}$ serving.

Then, you can set up the following proportion:

$\frac{1}{0.125}=\frac{8.5}{x}$

Solving for "x", you get:

$\frac{1}{0.125}=\frac{8.5}{x}\\\\x(\frac{1}{0.125})=8.5\\\\x=8.5*0.125\\\\x=1.0625$

or $\frac{17}{16}\ pounds$

7 0

3 years ago

Help me pls! :)

Oliga [24]

Answer:

C

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Which algebraic expression can be used to calculate the number of tickets fernando can buy?

pentagon [3]

Domain f(x)=1 - 5/x^4

3 0

4 years ago

10. Subtract the<br>fractions.<br>20 1 / 2 - 15 1/2 =<br>*Bonus: Reduce the<br>fraction.

BartSMP [9]

Answer: 5

Step-by-step explanation:

$20\frac{1}{2}-15\frac{1}{2}$

$20-15(\frac{1}{2}-\frac{1}{2})$

5

3 0

4 years ago

Shane rare book collection contains 40 books. He donates 20% of his books to the national libary. he sells 1/4 of his books to a

Amiraneli [1.4K]

Hopefully this could help you

6 0

3 years ago