Ask question

Ask question

All categories

3 years ago

9

What is the radius of a sphere with a surface area of 100πcm2?

1 answer:

blondinia [14]3 years ago

8 0

Surface area of a sphere = 4πr^2
4πr^2=100π
Divide both sides by 4π
r^2=100
r=10
The radius is 10 cm.

You might be interested in

Freeeee pointtsssssss

hjlf

Answer:

thxs

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Substation method x-2y=5 ,<br> 3x-5y=8

valina [46]

$x-2y=5 \\
3x-5y=8 \\ \\
\hbox{solve the first equation for x:} \\
x-2y=5 \ \ \ |+2y \\
x=2y+5 \\ \\
\hbox{substitute 2y+5 for x in the second equation:} \\
3(2y+5)-5y=8 \\
6y+15-5y=8 \\
y+15=8 \ \ \ |-15 \\
y=-7 \\ \\
x=2y+5=2 \times (-7)+5=-14+5=-9 \\ \\
\boxed{(x,y)=(-9,-7)}$

6 0

2 years ago

Which term is a perfect square of the root 3x4?

hodyreva [135]

Answer:

85

Step-by-step explanation:

because eight plus five is 85

3 0

2 years ago

Read 2 more answers

What is 26% of 50?<br> plz help

galben [10]

Answer:

13

Step-by-step explanation:

50 multiplied by .26

6 0

2 years ago

The volume of a cube is 216 ft^3. What is the length of a side?

nlexa [21]

Answer:

54

Step-by-step explanation:

cause a cub has 4 sides so each side is 54

3 0

2 years ago

Read 2 more answers