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Bess [88]
3 years ago
10

PLEASE HELP 15 POINTS -8 - h = 2(-.5h + 4)

Mathematics
1 answer:
Vanyuwa [196]3 years ago
3 0

Answer:

h= -6

Step-by-step explanation:

-8-h=2(-.5h+4)

-8-h=h+4

-2h=12

h=-6

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Answer:

Part I: cot(15 degrees) = cot(45 - 30)

Part II: Evaluation is below

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<em>Everything is done in degrees</em>

<em />

Two angles that differ by 15 degrees that is easy to evaluate is 30 degrees and 45 degrees. The cot(15 degrees) = cot(45 - 30) = 1/tan(45-30) = (1+tan45tan30)/(tan30 - tan45) = (1+ sqrt(3))/(sqrt(3) - 1)

We rationalize this by multiplying 1+ sqrt(3) in the top and bottom, getting:

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I hope this helps! :)

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2 years ago
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I’m not sure but I think it’s:
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7 0
3 years ago
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Sonbull [250]

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<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and equations can be built to find the desired measures in the problem using basic arithmetic operations such as multiplication or division, from the relations built in the problem.

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In the context of this problem, the scale is given by:

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4 0
11 months ago
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8 0
3 years ago
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