2 years ago

Which expression is equivalent to (10 + 7 r - r ^ 2) + (-6 r ^ 2 - 18 + 5 r)

Mathematics

1 answer:

garik1379 [7]2 years ago

7 0

Answer:

-7r^2+12r-8

Step-by-step explanation:

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klio [65]

Answer:

D -9

Step-by-step explanation:

(g o f)(-1) = g(f(-1))

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g(-4) = -4 - 5 = -9

So, (g o f)(-1) = -9

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2 years ago

If <br><img src="https://tex.z-dn.net/?f=%20%7B8%7D%5E%7Bx%7D%20%20%3D%202" id="TexFormula1" title=" {8}^{x} = 2" alt=" {8}^{x}

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Step-by-step explanation:

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1 year ago

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jeka94

Answer:

Polly=30

Andy=60

Phoebe=180

Step-by-step explanation:

Polly=x

Andy=2x

Phoeby 3(2x)=6x

x+2x+6x=270

9x=270

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Polly=x=30

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Phoebe=6x=180

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2 years ago

Please help<br> which of the following is equivalent to x^-1/2?

marin [14]

Answer:

-1

Step-by-step explanation:

-1/2(2)=-1

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2 years ago

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Answer:

Part A: 6250

Part B: No

Step-by-step explanation:

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30x3=90 < 100

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