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exis [7]
3 years ago
11

Factor each expression. Problem: r^2 +12r +27 Answer: (r + 3) (r + 9)

Mathematics
1 answer:
Olin [163]3 years ago
3 0
Think of it like this, what two numbers when multiplied together, you get 27, and when they add together, you get 12? The answer is 9 and 3,
Your answer here would be (r+9)(r+3) when factored.
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What’s the coefficient of x in the expression: -7x^2+3x-4?
likoan [24]

Answer:

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Step-by-step explanation:

Coefficient is the number in front of x (with the highest exponent )

6 0
3 years ago
Find X for each one of the following
Sveta_85 [38]
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Hope this helped! :)
5 0
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USPshnik [31]

Answer:

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Step-by-step explanation:

All these questions require is a calculator :). For question 35, all you want to put in is arccos(0.8192) and make sure your calculator is in degree mode. For 36, all you want to put in is arctan(0.3839). For 34, all you want to put in is arcsin(0.6018). For 33, all you want to put in is arcsin(0.6561).

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3 years ago
Find (f•f) (0)<br> F(x)=3x-2
NNADVOKAT [17]

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<u>Step-by-step explanation:</u>

f(x) = 3x - 2

(f·f)(x) = (3x - 2)(3x - 2)

         = 9x² - 12x + 4

(f·f)(0) = 9(0)² - 12(0) + 4

          = 4

(fof) = 3(3x - 2) - 2

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(fof)(0) = 9(0) - 8

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<em>I wasn't sure if you wanted multiplication or composition so I solved both</em>

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Which number is 4 units from-1
ella [17]
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Or -1 - 4 = -5

I would put 3.
8 0
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