Hello!
To find the surface area of a sphere you use the equation

A is surface area
r is radius which is half the diameter
Put in the values you know

Square the number

Multiply the 4 and the 39.0625

The answer is

Hope this helps!
Answer:
GOOD LUCK HOPE YOU FOUND YOUR ANSWER
Step-by-step explanation:
Answer:
D.
Step-by-step explanation:
I don't actually know I'm guessing.
Answer:
The z statistic is 0.23.
Step-by-step explanation:
Test statistic (z) = (sample mean - population mean) ÷ sd/√n
sample mean = 104 mg
population mean (mu) = 100 mg
sd = 55 mg
n = 10
z = (104 - 100) ÷ 55/√10 = 4 ÷ 17.393 = 0.23
Answer:

Step-by-step explanation:
we know that
The perimeter of a rectangle is equal to

we know that


substitute

solve for W


