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kolbaska11 [484]
3 years ago
5

Cylinder A has a radius of 4 centimeters. Cylinder B has a volume of 176π cubic centimeters. What is the height of cylinder B?

Mathematics
2 answers:
Dahasolnce [82]3 years ago
8 0
The height of cylinder “B” is 11 Centimeters
Arisa [49]3 years ago
3 0

Answer:

11 centimeters

Step-by-step explanation:

volume of cylinder = pi * r^2 * height

I am going to assume the radius is same for both cylinders.

176pi = pi (4^2)(height

176 = 16(height)

11 = height

You might be interested in
What is 383,342 rounded?
netineya [11]
To the nearest 100,000 is 400,000.

To the nearest 10,000 is 380,000

To the nearest 1,000 is 383,000

To the nearest 100 is 383,300

To the nearest 10 is 383,340

7 0
3 years ago
Can someone help me with this physics equation please I am really in need of help
e-lub [12.9K]

Answer:

The current is approximately 8.571 Amps

Step-by-step explanation:

You are supposed to use Ohm's Law for this problem.

Recall that Ohm's Law gives you the relationship between voltage applied (V), resistance (R) and current (I):  

V=I\,*\,R

If the units of resistance are ohms, and the voltage is in volts, the current will be given in Amps (amperes). Then solving for the current (I) in the above equation:

I=\frac{V}{R} \\I=\frac{120}{14} \\I=8.571\,\,Amps

3 0
3 years ago
The US Census reported that it takes workers an average of 28 minutes to get home from work with standard deviation 5 minutes. A
xz_007 [3.2K]

Using the z-distribution, as we have the standard deviation for the population, to test the hypothesis, it is found that this is evidence that workers in the large city take longer than 28 minutes to get home from work.

<h3>What are the hypothesis tested?</h3>

At the null hypothesis, it is tested if the mean time is of 28 minutes, that is:

H_0: \mu = 28

At the alternative hypothesis, it is tested if the mean time is greater than 28 minutes, that is:

H_1: \mu > 28.

<h3>What is the test statistic?</h3>

The test statistic is given by:

z = \frac{\overline{x} - \mu}{\frac{\sigma}{\sqrt{n}}}

The parameters are:

  • \overline{x} is the sample mean.
  • \mu is the value tested at the null hypothesis.
  • \sigma is the standard deviation of the sample.
  • n is the sample size.

In this problem, the values of the parameters are given by:

\overline{x} = 32, \mu = 28, \sigma = 5, n = 10

Hence:

z = \frac{\overline{x} - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{32 - 28}{\frac{5}{\sqrt{10}}}

z = 2.53

<h3>What is the decision?</h3>

Considering that we have a <em>right-tailed test</em>, as we are testing if the mean is greater than a value, with a standard <em>significance level of 0.05</em>, the critical value is of z^\ast = 1.645.

Since the test statistic is greater than the critical value, it is found that this is evidence that workers in the large city take longer than 28 minutes to get home from work.

To learn more about the z-distribution, you can check brainly.com/question/26454209

4 0
2 years ago
4 thousands 7 hundreds = 47
lina2011 [118]
4,700

4 thousands

4,000

7 hundreds

700

4,000+700

4,700
3 0
3 years ago
How do you do dividing 33 photos into two groups at the ratio is 4 to 7?
Nookie1986 [14]
If you have a problem with ratio, i would start with adding the numbers of the ratio, in our case:4+7=11

this means that the "whole" could be dividied into 11 parts, of which the first entity in the ratio has 4 and the other 7

since there are 33 photos, then each part is 33/11=3 photos.

so the two groups are 4*3=12
and

7*3=21

12 and 21 photos.
4 0
3 years ago
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