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Harrizon [31]
3 years ago
10

Pls help me solve this problem!!

Mathematics
1 answer:
ddd [48]3 years ago
4 0

Answer:

49.85

Step-by-step explanation:

41 is the mean, so half of the daily requests are above that number, half below, the question is about numbers above the mean, so the lower numbers won't be included in the percentage.

The difference between 59 and 41 is 18. The standard deviation given is 6.

18 ÷ 6 = 3  So that is 3 standard deviations. The empirical rule states that 99.7 of all values are within 3 standard deviations from the mean. But we are looking at only the upper half of those values so 99.7 ÷ 2 = 49.85 %

If the answer asks for approximate, you could round to 49.9 or 50.

And tell the math people to learn the correct spelling of fluorescent!

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If a movie theater sells 400 tickets for a total of
Oksanka [162]

Answer:

they would make $25,500

Step-by-step explanation:

6,800/400=17

1,500*17=25,500

<em>answer</em><em> </em>:$25,500

8 0
2 years ago
Please help with my geometry homework.
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Answer:

first option

Step-by-step explanation:

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The solution for the following system of linear equation 3m-2n=13 is (2,-1) true or false
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Answer:

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Step-by-step explanation:

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3 years ago
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On a map, a clothing store ia located at (-2,-3). A seafood restaurant is located 6 units to the right of the clothing store. Wh
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Use Hooke's Law to determine the work done by the variable force in the spring problem. A force of 450 newtons stretches a sprin
vlada-n [284]

Answer:

The work done is 202.50Nm

Step-by-step explanation:

Given

F =450N

x_1 = 30cm

x_2 = 60cm

Required

The work done

First, we calculate the spring constant (k)

F = kx_1

450N = k *30cm

k = \frac{450N}{30cm}

k =15N/cm

So:

F = kx_1

F(x) = 15x

The work done using Hooke's law is:

W =\int\limits^a_b {F(x)} \, dx

This gives:

W =\int\limits^{60}_{30} {15x} \, dx

Rewrite as:

W =15\int\limits^{60}_{30} {x} \, dx

Integrate

W =15 \frac{x^2}{2}|\limits^{60}_{30}

This gives:

W =15 *\frac{60^2 - 30^2}{2}

W =15 *\frac{2700}{2}

W =15 *1350

W =20250N-cm

Convert to Nm

W =\frac{20250Nm}{100}

W =202.50Nm

7 0
3 years ago
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