All categories

3 years ago

The radius of a sphere is 3 inches. Which represents the volume of the sphere?

Mathematics

1 answer:

Elodia [21]3 years ago

6 0

<h3>Answer: B) 36π cubic inches</h3>

=====================================

Work Shown:

V = volume of the sphere

V = (4/3)*π*r^3

V = (4/3)*π*(3)^3

V = (4/3)*π*27

V = (4/3)*27*π

V = ((4*27)/3)*π

V = (108/3)π

V = 36π

You might be interested in

jon's car can travel an average of 35 miles per gallon. How many gallons will he need for a trip of 656 miles?

I am Lyosha [343]

Answer:

19 gallons

Step-by-step explanation:

We divide the total distance by the distance per gallon: 656/35. We get 18.74..., so Jon would need 19 gallons to travel 656 miles.

3 0

2 years ago

A = b + c / d <br><br> What does b equal ???

stellarik [79]

Answer: 1

Step-by-step explanation:

5 0

2 years ago

A baker used 2/3 cup of milk and 4/5 cups of water for each recipe. How many liquid in all did the baker use?

egoroff_w [7]

Answer:

1.46666666667

Step-by-step explanation:

calculator

7 0

2 years ago

Tom has a 500 gallon pool. He is able to drain it at a rate of 15 gallons per minute. if the pool still has 170 gallons of wa

Akimi4 [234]

Answer: 22 minutes

Step-by-step explanation: 500-170 means that he drained 330 gallons of water so 330 divided by 15 gallons a minute so you get 22 so it takes 22 minutes to have 170 gallons left in the pool

8 0

3 years ago

According to the document Current Population Survey, published by the U.S. Census Bureau, 30.4% of U.S. adults 25 years old or o

Marizza181 [45]

Answer:

0.0803 = 8.03% probability that the number who have a high school degree as their highest educational level is exactly 32.

Step-by-step explanation:

For each adult, there are only two possible outcomes. Either they have a high school degree as their highest educational level, or they do not. The probability of an adult having it is independent of any other adult. This means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

30.4% of U.S. adults 25 years old or older have a high school degree as their highest educational level.

This means that $p = 0.304$

100 such adults

This means that $n = 100$

Determine the probability that the number who have a high school degree as their highest educational level is a. Exactly 32

This is P(X = 32).

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 32) = C_{100,32}.(0.304)^{32}.(0.696)^{68} = 0.0803$

0.0803 = 8.03% probability that the number who have a high school degree as their highest educational level is exactly 32.

7 0

2 years ago