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garri49 [273]
3 years ago
7

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

Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
7 0

The radius is 5cm

Step-by-step explanation:

The surface area of a sphere is given by:

SA = 4\pi r^2

Here

Given

SA = 100π cm^2

Putting the values in the formula

100\pi = 4\pi r^2\\r^2 = \frac{100\pi}{4\pi}\\r^2 = 25

Taking square root on both sides

\sqrt{r^2} = \sqrt{25}\\r = 5 cm

The radius is 5cm

Keywords: Surface area, Radius

Learn more about surface area of sphere at:

  • brainly.com/question/1388658
  • brainly.com/question/1386181

#LearnwithBrainly

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20 POINTS Compost costs $10 per cubic yard and topsoil costs $2 per cubic yard. Maria needs more than 10 cubic feet of topsoil.
Morgarella [4.7K]
I can't see the graph but let's use logic
hmm, more than 10 cubic feet of topsoil so the first and 2nd options are wrong

let's ee the costs
3rd option
10*1=10
2*12=24
10+24=34 and 34<50, that is fine

4th option
3*10=30
2*12=24
30+24=54
54>50, nope, that is over cost


answer is 3rd one
the one with 1 cubic yard compost and 12 cubic yard topsoil
8 0
3 years ago
Read 2 more answers
Solve for the given length. The length of a rectangle is 3m longer than its width. The area of the rectangle is 154^2. What is t
Andre45 [30]
If the length of a rectangle is 3m longer than its width, then:
L=W+3
Is the area really 154^2? Or is it 154m^2? If yes, then:
A=LW
154=(W+3)(W)
154=(W^2+3W)
0=W^2+3W-154
0=(W-11)(W+14)
This means either (W-11) or (W+14) is equal to zero so:
W=11 and W=-14
To find out let's substitute the numbers:
154=(11+3)(11)
154=154
Therefore, the width of the rectangle is 11m
7 0
3 years ago
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Which equation is represented by the graph below
notsponge [240]

Answer:

y=ex+4 ok hope you get it right

8 0
2 years ago
 Abbey is adopting a kitten. Abbey has a rectangular container to bring the kitten home in. The container has a volume of 3,100
solniwko [45]
  • L=10.6in
  • H=15.6in
  • B=?

\\ \rm\Rrightarrow V=LBH

\\ \rm\Rrightarrow 3100.5=10.6(15)B

\\ \rm\Rrightarrow 3100.5=159B

\\ \rm\Rrightarrow B=\dfrac{3100.5}{159}+19.5

5 0
2 years ago
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Please help I cant figure it out
Softa [21]
This should help-
Triangle Total angle measures = 180
Right angle= 90
Line = 180

7 0
3 years ago
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