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3 years ago

Expand the following expression 3(9+2b-5) and evaluate for b=2

Mathematics

2 answers:

sammy [17]3 years ago

8 0

Answer:

Distribute

27 + 6b - 15 12 + 6b 13 19 12 + 6(2) = 24

Step-by-step explanation:

hope this helps

inna [77]3 years ago

6 0

Answer:

Step-by-step explanation:

Distribute

27 + 6b - 15

then combine like terms

12 + 6b.

then to evaluate

plug in 2 for b

12 + 6(2) = 24

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Answer:

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3 years ago

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mash [69]

<h3>Answer: Choice H) 2</h3>

=============================================

Explanation:

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If we were to isolate sine, then,

$\sin^2 x + \cos^2x = 1\\\\\sin^2 x = 1-\cos^2x\\\\\sin x = \sqrt{1-\cos^2x}\\\\$

We don't have to worry about the plus minus because sine is positive when 0 < x < pi/2.

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Cosine is also positive in this quadrant.

-------------

So,

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2 years ago

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Answer:

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Answer:

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