3 years ago

The radius of a circle is 7 centimeters

Mathematics

1 answer:

amm18123 years ago

8 0

a) So we know the formula of finding the circumference: 2*pi*R.

Assuming we make pi = 3.14: 2 * 3.14 * 7 = 43.96.

b) We also know the formula of finding the area: pi * r^2.

3.14 * 7^2. Using PEMDAS:

3.14 * 49 = 153.86

You might be interested in

Determine which situations would be debits from a bank account. Select all that apply. paying an electric bill

siniylev [52]

Answer:

im not sure but i think its c

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

your classmate tells you the details of the great deal he got on his mortgage: 30- year 3.5% fixed rate with a 10% down payment.

DIA [1.3K]

Answer:

$13,600

Step-by-step explanation:

If he puts a down payment of 10% on $136,000

Then is should be $13,600

4 0

3 years ago

If the original quantity is 10 and the new quantity is 11, what is the percent crease?

LenKa [72]

Answer:

10 %

Step-by-step explanation:

We first find change in the quantities

Then we write the change in quantity on original quantity and multiply by 100%

This implies that,

$\frac{11 - 10}{10} \times 100\%$

$=\frac{1}{10}\times100\%$

$=10\%$

Therefore the percentage increase is 10%

8 0

3 years ago

A number divisible by 5 but not by 2

Anna11 [10]

Answer:

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

The area of a circle is 4π square kilometers. What is the radius? Write your answer in simplest form.

Mariana [72]

Answer:

2 km

Step-by-step explanation:

4π = π × r²

r² = 4

r = 2

7 0

3 years ago