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2 years ago

Please help! I need help with this

History

1 answer:

Ghella [55]2 years ago

8 0

Answer
A the marshall plan is a plan specifically designed to aid in Europe's recovery in the aftermath of the 2nd World War

Explanation:

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23. Find the exact value of cos(20) knowing that: *

Kaylis [27]

Answer:

$\cos(2\theta) = 0$

Explanation:

Given

$\sin(\theta) = -\frac{\sqrt 2}{2}$

$270^o < \theta < 360^o$

Required

$\cos(2\theta)$

Recall that:

$\sin^2(\theta) + \cos^2(\theta) =1$

Substitute: $\sin(\theta) = -\frac{\sqrt 2}{2}$

$(-\frac{\sqrt 2}{2})^2 + \cos^2(\theta) =1$

$\frac{1}{2} + \cos^2(\theta) =1$

Collect like terms

$\cos^2(\theta) =1-\frac{1}{2}$

$\cos^2(\theta) =\frac{1}{2}$

$\cos(2\theta)$ is calculated as:

$\cos(2\theta) = \cos^2(\theta) - \sin^2(\theta)$

So, we have:

$\cos(2\theta) = \frac{1}{2} - (-\frac{\sqrt 2}{2})^2$

$\cos(2\theta) = \frac{1}{2} - \frac{2}{4}$

$\cos(2\theta) = \frac{1}{2} - \frac{1}{2}$

$\cos(2\theta) = 0$

7 0

3 years ago

Sorry about the yellow i clicked it on accident but which is the answer A B C or D i can't get it right

guajiro [1.7K]

Answer:

B They worked hard to succeed

Explanation:

Thanks for the points

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3 years ago

How did religion play a role as a cause of the American independence movement

alina1380 [7]

Religion played a major role in the American revolution by offering a sanction for opposition to the British

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3 years ago

What did the Morrill Act of 1862 do?

PIT_PIT [208]

Question: What did the Morrill Act of 1862 do?

Answer: It helped create public colleges throughout the United States.

Explanation: the states didnt have very much land so they passed a law to give each state a ceartain amount of land and make colleges and other stuff they needed

question answered by

(jacemorris04)

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3 years ago

Which of the following was a strongest argument for the use of the atomic bomb on Nagasaki and Hiroshima?

Gnom [1K]

Answer:

Explanation:

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3 years ago