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kumpel [21]
3 years ago
9

Why did this app make me fail my test?

Mathematics
2 answers:
Dvinal [7]3 years ago
5 0
Not everyone is always right.
Yuki888 [10]3 years ago
4 0
Probably because people gave you the wrong answer. Not saying they did this intentionally....
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Use photo math for this :)
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Which of the following is equivalent to the expression below when x >0?
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2 years ago
Use differentials to estimate the amount of paint needed (in m3) to apply a coat of paint 0.04 cm thick to a hemispherical dome
pogonyaev

The amount of paint is the volume of paint needed.

The amount of paint needed is 0.065312 cubic meters

<h3>How to determine the amount of paint needed</h3>

The volume of a hemisphere is:

V = \frac 23\pi r^3

Differentiate the above equation

V' = 2\pi r^2 r'

The above equation represents the estimate of the amount of paint needed.

Where:

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So, we have:

V' = 2\pi r^2 r'

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V' = 2 * 3.14 * (26\ m)^2 * (0.04cm)

Express cm as m

V' = 2 * 3.14 * (26\ m)^2 * (0.0004m)

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Hence, the amount of paint needed is 0.065312 cubic meters

Read more about volumes at:

brainly.com/question/10171109

3 0
2 years ago
Sam scored 43, 48, and 42 points on three tests. How many points should he get on the fourth test to get an average score of 50?
tatiyna

So we know that an average is the sum of the scores divided by the number of scores that were added together. In this case we are going to be dealing with 4 tests. So let's say x is the score for our fourth test. We can create this equation:

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3 years ago
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3 is the unit rate of 27 and 12
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