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Reil [10]
2 years ago
5

What is the volume of a right circular cylinder with a diameter of 46. 25 cm and a height of 18. 5 cm? Enter your answer in the

box. Use 3. 14 for pi and round only your final answer to the nearest hundredth. Cm³.
Mathematics
1 answer:
Sedbober [7]2 years ago
3 0

The volume of the right circular cylinder is 31064.54 cm³.

What is the formula for the volume of cylinder?

Formula:

V = πr²h.............. Equation 1

Since,

V = Volume of the right circular cylinder

r = radius of the base of the cylinder

h = height of the cylinder.

We have given that,

r = 46.25/2 = 23.125 cm

h = 18.5 cm

π = 3.14

We have to calculate volume of right circular cylinder.

Therefore,

Substitute these values into equation 1

V = 3.14(23.125²)(18.5)

V = 31064.54 cm³

Therefore

The volume of the right circular cylinder is 31064.54 cm³.

Learn more about the volume of a cylinder here:

brainly.com/question/1082469

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A poll conducted in 2013 found that 55% of U.S. adult Twitter users get at least some news on Twitter (Pew, 2013). The standard
alina1380 [7]

Answer:

The 99% confidence interval for the fraction of U.S. adult Twitter users who get some news on Twitter is between 49.34% and 60.66%, which means that we are 99% sure that the true percentage of US adult Twitter users who get some news is in this interval.

Step-by-step explanation:

Confidence interval:

A confidence interval has the following format:

M \pm zs

In which M is the sample mean, z is related to the confidence level and s is the standard error.

55% of U.S. adult Twitter users get at least some news on Twitter (Pew, 2013). The standard error for this estimate was 2.2%.

This means that M = 55, s = 2.2

99% confidence level

So \alpha = 0.01, z is the value of Z that has a pvalue of 1 - \frac{0.01}{2} = 0.995, so Z = 2.575.

Lower bound of the interval:

M - zs = 55 - 2.575*2.2 = 49.34

Upper bound:

M + zs = 55 + 2.575*2.2 = 60.66

The 99% confidence interval for the fraction of U.S. adult Twitter users who get some news on Twitter is between 49.34% and 60.66%, which means that we are 99% sure that the true percentage of US adult Twitter users who get some news is in this interval.

6 0
2 years ago
Find x if:<br> 1. 125x^3=b^9<br><br> 2.16x2=1
vitfil [10]
1   x^3 = b^9 / 125

x =  b^3 / 5 

2.   x^2 = 1 /2.16

x = sqrt 1/2.16

x =  +/- 0.68 to nearest hundredth

4 0
3 years ago
If U = {all positive integers} and A = {x|x ∈ U and x is an odd positive integer}, which describes Ac?
Ainat [17]

Answer: B: Ac = x|x E U and is zero

Step-by-step explanation: got it right on e2020 test

8 0
3 years ago
Please answer due today!
galben [10]

Answer:

-9 and 7

Step-by-step explanation:

5 0
3 years ago
I really need help with this
IceJOKER [234]
The correct answer is D!
3 0
3 years ago
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