3 years ago

Suppose a normal distribution has a mean of 12 and a standard deviation of 4

Mathematics

1 answer:

Sedaia [141]3 years ago

4 0

Answer:

The correct answer is C. 1.5

Step-by-step explanation:

To find this, first find the difference from the value to the mean.

18 - 12 = 6

Now that we have this, divide it by the size of a standard deviation to find how many it is away.

6/4 = 1.5

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Answer:70

Step-by-step explanation:910/13=70 so he gives away 70 loafs of bread.

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3 years ago

You spent $7 more than you had. Write an integer to represent this? Would it be -7?

dezoksy [38]

That would be correct

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2 years ago

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MZRSK = x + 53, m KST = x + 109, and mZRST = 156º Find x.

Dahasolnce [82]

Answer:

$-3 = x$

Step-by-step explanation:

Since we are not given a midpoint, we use the Angle Addition Postulate:

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156 = 162 + 2x

-162 - 162

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156 = 156 ☑

Therefore, $-3 = x$ is a genuine statement.

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3 years ago

The quantities x and y are proportional.

Ahat [919]

Answer:

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3 years ago

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Select all of the following expressions that are equivalent to 16a+40 .

lina2011 [118]

The first one is true
4(4a+10) is
16 a + 40 after distribution

The second one is also true
2(8a+20)
16a + 40 after distribution

Third is not true
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16a + 40a^2 after distribution

Last one is also true
8(2a+5)
16a + 40 after distribution

Hope this helps :)

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3 years ago