3 years ago

Find the approximate radius of a sphere with a surface area of 400 square inches.

1 answer:

7 0

The equation for surface area of a sphere is SA=4*pi*r^2
We can plug in what we know to solve for r
400=4*pi*r^2
100=pi*r^2 (divide out the 4)
100/pi=r^2 (divide out the pi)
√(100/pi)=r (square root of both sides)
r=5.6 rounded to the nearest tenth

You might be interested in

If a x 10n is scientific notation, then a must be between 1 and ___.

posledela

Answer:

b. 100

Step-by-step explanation:

usatestprep approved

5 0

3 years ago

write an equation in slope intercept form parallel to the line y-4=3(x-1) and traveling through the point (-4,3)

stepladder [879]

Y equals 3x plus 15.

6 0

3 years ago

Read 2 more answers

Antonia is keeping track of the number of pages she reads. She started the school year having already read 95 pages her book, an

nirvana33 [79]

F(x) represents how many books in total and x represents the number of days

8 0

3 years ago

Read 2 more answers

Last summer there were 88 players at coach rodriguez basketball camp. this year there are 125% of this number of players. how ma

ludmilkaskok [199]

To determine the number of those who joined the basketball camp this year, we just have to multiply the number of those who joined last year by the decimal equivalent of the percentage given. That is,
x = 88(1.25)
x = 110
Therefore, there are a total of 110 players for this years basketball camp.

6 0

3 years ago

Jared has two dogs, Spot and Rover. Spot weighs 75.25 pounds. Rover weighs 48.8 pounds more than Spot. How much does Rover weigh

Luda [366]

75.25+ 48.8=124.05 so rover weighs 124.05 pounds hope this helps☺

8 0

3 years ago