3 years ago

The area of a circle is 16 π cm 2 . What is the circle's circumference?

Mathematics

1 answer:

Andrej [43]3 years ago

5 0

A=piR^2
16pi=piR^2 So R=4cm

C=2piR
C=8pi cm

You might be interested in

Can someone help pls

lora16 [44]

I got 7.1 x 10^(-11) but it's been a few years so I could've done it wrong

5 0

3 years ago

What is the value of x? (will give brainliest if you show your work) PLEASE HELP

andrew-mc [135]

Check the picture below.

$\bf \cfrac{8}{12}=\cfrac{x+4}{2x+1}\implies 16x+8=12x+48\implies 4x=40
\\\\\\
x=\cfrac{40}{4}\implies x=10$

8 0

3 years ago

Edna earns $6 for each hour of yard work. How many hours in all will it take Edna to earn $42?

madreJ [45]

Answer:

42 divided by 6=7 so 7 hrs

Step-by-step explanation:

its probalay wrong im not smart lol

5 0

3 years ago

Read 2 more answers

If 3x + c = 4, then x equals A: 4-c B: 4 -c/3 C: c-4/3 D: c-4

Colt1911 [192]

Answer:

4-c/3 is ans

Step-by-step explanation:

3x+c=4

3x=4-c

x=4-c/3

4 0

3 years ago

You withdrew $36.25 from your checking account. Now your balance is -$14.75. Write and solve an equation to find the amount of m

iVinArrow [24]

Total was x
subtract 36.25 amount of money and you have -14.75 left

You can write this
x - 36.25 = -14.75
add 36.25 to both sides
x = -14.75 + 36.25
Solve by combining like terms
x = 21.5

You had $21.5 on your account before you withdrew $36.25 and had a balance of -$14.75 left.

Hope this helps!

8 0

3 years ago

Read 2 more answers