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spin [16.1K]
3 years ago
5

Not sure if I got it right...I know it is one of the first 2.

Mathematics
2 answers:
Ahat [919]3 years ago
4 0

Answer:

D.\frac{-6x^{2}-x-7 }{x^{2}+9}

Step-by-step explanation:

since the x^{2}+9=x^{2} +9 you just have to add \frac{-6x^{2}+x-3-2x-4 }{x^{2}+9 } so the answer will be: \frac{-6x^{2}-x-7 }{x^{2}+9 }

e-lub [12.9K]3 years ago
3 0

Answer:

Step-by-step explanation:

-6x^2 + x -3 + 2x + 4

________________________

x^2 + 9

-6x^2 + 3x + 1

__________

  x^2 + 9

the solution is the first one

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The diameter of the moon is 2,160 miles. A model has a scale of 1 in : 150 mi. What is the diameter of the model?
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Answer:

The diameter of the model is 14.4 inches.

Step-by-step explanation:

The Diameter of the moon = 2,160 miles

The scale on the model represents 1 in = 150 miles

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So, by the Ratio of Proportionality:

\frac{1}{150}   = \frac{k}{2160}

⇒k = \frac{2160}{150} \\\implies k =  14.4

or, k = 14.4 inches

⇒On the scale 2160 miles is represented as 14.4 inches

    Hence the diameter of the model is 14.4 inches.

3 0
3 years ago
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Lena [83]

Answer:

(20.)  D is the correct answer

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Step-by-step explanation:

hope this helps u ;)

3 0
2 years ago
PLS ANSWER WILL MARK BRAINLIEST
fomenos

Answer:

All you have to do is to the distributive method.

Step-by-step explanation:

(7x+14)(9x-8)

5 0
3 years ago
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4 years ago
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