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UNO [17]
2 years ago
7

Help needed please!!

Mathematics
1 answer:
Nitella [24]2 years ago
6 0
They r similar shapes so the answer is b
The length is 3
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What is the circumference of a circle having a radius of 6cm?
malfutka [58]

Answer:

12cm.

Step-by-step explanation:

The radius is half of a circe.

6 * 2 = 12.

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3 years ago
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The equation of a line is y = -3x. To which equation is the line parallel to? A. Y = 1 third x minus 4 B. Y = 3x + 10 C. Y = -10
Sergeeva-Olga [200]

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This line would be parallel to C. y = -10 - 3x

Step-by-step explanation:

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I need help..... I don't understand at all
cluponka [151]
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An experiment was conducted to test the effect of a new cholesterol medicine. Fifteen people were treated with medicine X and 15
gtnhenbr [62]

Considering the hypothesis tested and the p-value of the test, the correct option is given by:

There is sufficient evidence that there is a difference in mean cholesterol level when using medicine X and medicine Y.

<h3>What are the hypothesis tested?</h3>

At the null hypothesis, it is tested if there is no difference between the cholesterol levels, that is:

H₀:Hₓ-H

At the alternative hypothesis it is tested if there is a difference, hence:

H₀:Hₓ-H≠0

The p-value is of 0.003 < 0.01, hence we reject the null hypothesis and conclude that there has was a difference, hence the correct option is given by:

There is sufficient evidence that there is a difference in mean cholesterol level when using medicine X and medicine Y.

More can be learned about hypothesis tests at brainly.com/question/26454209

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