2 years ago

The radius of a circle is 7 centimeters

Mathematics

1 answer:

amm18122 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

There are 30 students in a class. The teacher will choose 2 students at random to represent the class at an assembly. How many g

Sunny_sXe [5.5K]

30/2=15
15 groups of 2 can be chosen.

8 0

3 years ago

Christine bought 124 inches of red ribbon . she wants to make bows for a party . each now requires 5 inches of ribbon . How many

Minchanka [31]

The answer would be 24 because 124 divided by 5 is 24.8 but if you round it out of all the inches of red ribbon she can make 24

7 0

2 years ago

Please help asap!

allochka39001 [22]

Answer:

See below

Step-by-step explanation:

The solution choices all agree that x = 1±√2. The second equation tells you ...

y = ±2√(x+2)

so the sign of the √2 term in x is the same as the sign of the √2 term in y. The answer choices circled in red are the ones that meet this requirement.

4 0

3 years ago

4/9 of the audience at a concert, 1/2 of the remainder are woman and the rest are children. If there are 26 boys and 9 girls, wh

Anna [14]

The amount is 1/7th. Your welcome.

6 0

2 years ago

Read 2 more answers

29.24/0.153 is what?

PolarNik [594]

Answer:

191.111111111

Step-by-step explanation:

29.24 / 0.153 =191.111111111

8 0

3 years ago