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erastova [34]
3 years ago
5

Erika ran 3/8 mile. maria ran 3/4mile. who ran farther

Mathematics
2 answers:
Alekssandra [29.7K]3 years ago
5 0
Maria. You can check by dividing 8 into 3 and 3 into 8.
Ierofanga [76]3 years ago
5 0
Well let's see .......
Change 3/4 to 8's
so it will be 3x2/4x2
so then it will be 6/8
6/8 compared to 3/8
3/8<6/8
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Answer:

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Step-by-step explanation:

Given

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Required

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P(a < x < b) = \int\limits^b_a {f(x)} \, dx

So, we have:

P(0.3 < x < 0.7) = \int\limits^{0.7}_{0.3} {6x(1 - x)} \, dx

Open bracket

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Integrate

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P(0.3 < x < 0.7) =  3x^2 - 2x^3|\limits^{0.7}_{0.3}

Substitute 0.7 and 0.3 for x

P(0.3 < x < 0.7) =  (3*0.7^2 - 2*0.7^3) - (3*0.3^2 - 2*0.3^3)

Using a calculator, we have:

P(0.3 < x < 0.7) =  (0.784) - (0.216)

Remove brackets

P(0.3 < x < 0.7) =  0.784 - 0.216

P(0.3 < x < 0.7) =  0.568

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