3 years ago

I need help you don't have to explain the answer I just need it, thank you!

Mathematics

1 answer:

denpristay [2]3 years ago

6 0

Answer:

j = 10

Step-by-step explanation:

You add 7 to both sides then divide both sides by -2

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The playing life of a Sunshine radio is normally distributed with mean LaTeX: \muμ = 600 hours and standard deviation LaTeX: \si

Hitman42 [59]

Answer:

The probability that a radio selected at random will last from 600 to 700 hours is 0.3413

Step-by-step explanation:

The playing life of a Sunshine radio is normally distributed

Mean = $\mu = 600 hours$

Standard deviation = $\sigma = 100 hours$

We are supposed to find the probability that a radio selected at random will last from 600 to 700 hours i.e.P(600<x<700)

Formula: $Z= \frac{x-\mu}{\sigma}$

At x = 600

$Z= \frac{600-600}{100}$

Z=0

$P(X$

At x = 700

$Z= \frac{700-600}{100}$

Z=1

$P(X$

$P(600$

Hence the probability that a radio selected at random will last from 600 to 700 hours is 0.3413

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3 years ago

5 + n2 > 8<br> A. n > 6<br> B. n>3<br> C. n>1.5<br> D. n < 26

san4es73 [151]

N•2>8
then dive both sides 2n>8
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Factor x3 ‒ 11x2 ‒ 7x + 77 by grouping. What is the resulting expression?

shepuryov [24]

Answer:

A. $(x^{2}-7)\cdot (x-11)$

Step-by-step explanation:

The third order polynomial is factored herein:

$x^{2}\cdot (x-11) - 7\cdot (x-11)$

$(x^{2}-7)\cdot (x-11)$

Which represents answer A.

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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