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3 years ago

15

Explain the geographic context for the development of the Crusades.

1 answer:

Kay [80]3 years ago

7 0

The wars created a constant demand for supplies and transportation, which resulted in ship-building and the manufacturing of various supplies. After the Crusades, there was a heightened interest in travel and learning throughout Europe, which some historians believe may have paved the way for the Renaissance.

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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:

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

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

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

$\cos(2\theta) = 0$

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3 years ago

In the United States, the Federal Trade Commission __________. A. regulates trades made on the nation’s stock exchanges B. overs

pentagon [3]

D they protect the nation's consumers

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3 years ago

How did the Franks differ from the Vikings?

amid [387]

Most tribes come and go/conquered or mix in

Franks successful in settling - Establish roots

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3 years ago

Once we are saved, we no longer have to worry about the struggle with our flesh. True False

dolphi86 [110]

Answer:

I think it's false.

Explanation:

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3 years ago

The A of C allowed the national government to do three things: (Choose 3)

wel

Answer:

E,A,D

Explanation:

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