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romanna [79]
3 years ago
15

Given cos A = .25 find angle A in degrees. Round your answer to the nearest hundredth.

Mathematics
1 answer:
Oksana_A [137]3 years ago
8 0
For this you need to use the reverse cosine function
Cos^-1 (.25)
75.6
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If the value of y varies directly with x when y=50, x=4. What is the value of y when x=2
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Answer:

Step-by-step explanation:

The general equation for a direct variation is y = k*x

So your first step (usually) is to find k

y = k x

when x = 4

then y = 50

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Now you can find the value of y when x = 2

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y = 12.5 * 2

y = 25

8 0
3 years ago
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Step-by-step explanation:

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Step-by-step explanation:

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