3 years ago

What is the circumference and area of this circle? (Use 3.14 for pi)

1 answer:

6 0

Circumference = 2*pi*r
= 2 * 3.14 * 7
= 43.96 cm

Area = pi * r^2 (pi times radius squared)
= 3.14 * 7^2
= 3.14 * 49
= 153.86 cm^2 (153.86 square centimeters)

You might be interested in

Raul has 56 bouncy balls. He puts three times as many balls into red bags as he puts into green gift bags. If he puts the same n

zhannawk [14.2K]

I think the answer is 112

8 0

4 years ago

Read 2 more answers

By what percent will a fraction increase if its numerator is decreased by 30%

Nadya [2.5K]

Answer:

40%

Step-by-step explanation:

Let x = numerator

Let y = denominator

$\implies \dfrac{x}{y}$

Decreased by 30% = 100% - 30% = 70% = 70/100 = 0.7

Decreased by 50% = 100% - 50% = 50% = 50/100 = 0.5

$\implies \dfrac{0.7x}{0.5y}$

$\implies \dfrac{0.7}{0.5}=1.4$

$\implies 1.4 \ \dfrac{x}{y}$

1.4 as a percentage = 1.4 x 100 = 140%

Therefore, the percentage increase is 140 - 100 = 40%

3 0

2 years ago

So a scale drawing of a school bus has a scale of 12 inch to 5 feet. If the length of the school bus is 412 inches on the scale

Andre45 [30]

Answer:

So since the scale is 12 inches:5 feet, we have to divide 412 inches by 12 inches because 412 inches is the total length drawn on the scale drawing.

412/12 = 34.3

Then since each 12 inches equals 5 feet and we have 34.3 12x inches. We are just going to multiply 34.3 by 5.

34.3*5 = 171 and 2/3 feet is your actual length of the bus

6 0

3 years ago

Pls pls i need help with this

Scrat [10]

Answer:

5+8=13

5/13

Lisa's fraction is 5/13

6 0

3 years ago

What is the volume of a cube whose edges each have a measure of 1.5 cm?

ElenaW [278]

B) 3.375 $cm^{3}$

Hope this helped!

8 0

3 years ago