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Nitella [24]
2 years ago
11

A weather service records 28.8 inches of rain over a 12 month period. What is the average rainfall per month for the year?

Mathematics
1 answer:
Basile [38]2 years ago
6 0

Answer:

B) 2.4 inches

Step-by-step explanation:

The total amount of rain is 28.8 inches over 12 months. To find how much rain falls averagely in <em>one </em>month you need to divide the total by the amount of months. 28.8/12 = 2.4

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4. Which of the following lines is perpendicular to y = -2X + 8?
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For this case we have to by definition, if two lines are perpendicular then the product of its slopes is -1.

That is to say:

m_ {1} * m_ {2} = - 1

We have the following equation:

y = -2x + 8

So:

m_ {1} = - 2

Thus:

m_ {2} = \frac {-1} {m_ {1}}\\m_ {2} = \frac {-1} {- 2}\\m = \frac {1}{2}

Thus, a line perpendicular to the given line must have slope m = \frac {1} {2}.

Option A:

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It is not perpendicular!

Option B:

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If it is perpendicular!

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It is not perpendicular!

The correct option is option B

ANswer:

Option B

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