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2 years ago

Find the slope between the points (4, -6) and (-2, -6).

Mathematics

1 answer:

Alja [10]2 years ago

6 0

Answer:

Use the slope formula !

Step-by-step explanation:

Slope=

Change in x

Change in y

(4,-6) (-2,-6)

X(1)Y(1) x(1) y(1)

(-2) - (4) = -6

(-6) - (4) -10 This is the answer!!!!

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Answer:

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Step-by-step explanation:

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2 years ago

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Answer:

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Step-by-step explanation:

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2 years ago

A meteorologist is studying the speed at which thunderstorms travel. A sample of 10 storms are observed. The mean of the sample

dezoksy [38]

Answer:

The 95% confidence interval for the true mean speed of thunderstorms is [10.712, 13.688].

Step-by-step explanation:

Given information:

Sample size = 10

Sample mean = 12.2 mph

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At confidence interval 95% then z-score is 1.96.

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$CI=\overline{x}\pm z*\frac{s}{\sqrt{n}}$

Where, $\overline{x}$ is sample mean, z* is z score at 95% confidence interval, s is standard deviation of sample and n is sample size.

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$CI=12.2\pm 1.487535$

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$CI=[12.2-1.488, 12.2+1.488]$

$CI=[10.712, 13.688]$

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