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igor_vitrenko [27]
4 years ago
13

I need help right now.

Mathematics
1 answer:
Inessa [10]4 years ago
3 0
X=10
y=2
f =(5*2)-(4*2)
f=10-8
f=2
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-2(x+3)&lt;20 <br> Show work and write solution set
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x > - 13

Step-by-step explanation:

Given

- 2(x + 3) < 20 ← distribute parenthesis on left side

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Answer:

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Step-by-step explanation:

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4 0
3 years ago
Suppose that the scores on a reading ability test are normally distributed with a mean of and a standard deviation of . What pro
Gnoma [55]

Answer:

The proportion of individuals score at most 74 points on this test is 70%.

Step-by-step explanation:

The complete question is:

Suppose that the scores on a reading ability test are normally distributed with a mean of 70 and a standard deviation of 8. What proportion of individuals score at most 74 points on this test? Round your answer to at least four decimal places.

Solution:

Let <em>X</em> represent the scores on a reading ability test.

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P(X\leq 74)=P(\frac{X-\mu}{\sigma}\leq \frac{74-70}{8})

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Thus, the proportion of individuals score at most 74 points on this test is 70%.

4 0
4 years ago
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