Answer: Diameter = 4 cm
Step-by-step explanation:
20π = (π)(r^2)(5)
divide by 5 * π
4 = r^2
find the square root of both sides
2 = r
2 * 2 = d
4 = d
Answer:
2
Step-by-step explanation:
1 + 1 = 2
O 2x ++
Step by step explanation:
Considering it's volume of 113 cm³, the approximate radius of the sphere is given by:
A. 3 cm
<h3>What is the volume of an sphere?</h3>
The volume of an sphere of radius r is given by:

In this problem, we have that V = 113 cm³, hence the radius in cm is given as follows:



![r = \sqrt[3]{\frac{113 \times 3}{4\pi}}](https://tex.z-dn.net/?f=r%20%3D%20%5Csqrt%5B3%5D%7B%5Cfrac%7B113%20%5Ctimes%203%7D%7B4%5Cpi%7D%7D)
r = 3 cm.
Hence option A is correct.
More can be learned about the volume of an sphere at brainly.com/question/25608353
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Answer:
Expectation number of books a customer will purchase = 1.3
Step-by-step explanation:
x : 0 1 2
p(x) :0.2, 0.3, and 0.5
Expectation
E(X) = ∑x P(x)
= 0 X 0.2 +1 X 0.3+ 2 X 0.5
= 1.3
Expectation E(X) = 1.3
Expectation number of books a customer will purchase = 1.3