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olya-2409 [2.1K]
3 years ago
11

Find the slope of the line that passed though the two points (0,5) and (-9, -4)

Mathematics
1 answer:
OverLord2011 [107]3 years ago
6 0

To find the slope, use the slope(m) formula:

m=\frac{y_2-y_1}{x_2-x_1}        and plug in the two points

(0, 5) = (x₁, y₁)

(-9, -4) = (x₂, y₂)

m=\frac{y_2-y_1}{x_2-x_1}

m=\frac{-4-5}{-9-0}

m=\frac{-9}{-9}    [two negatives cancel each other out and become positive]

m = 1      The slope is 1

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30°

Step-by-step explanation:

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Heights of men have a bell-shaped distribution, with a mean of 176 cm and a standard deviation of 7 cm. Using the Empirical Rule
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Answer:

a) 68% of the men fall between 169 cm and 183 cm of height.

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c) It is unusual for a man to be more than 197 cm tall.

Step-by-step explanation:

The 68-95-99.5 empirical rule can be used to solve this problem.

This values correspond to the percentage of data that falls within in a band around the mean with two, four and six standard deviations of width.

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\mu-\sigma=176-7=169\\\mu+\sigma=176+7=183

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