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Brrunno [24]
3 years ago
8

Select the correct product. (x2 + 6x + 9)(3x - 1) 3x3 + 17x2 + 21x - 9 3x3 - 17x2 - 21x - 9 3x3+ 19x2 + 27x + 9 3x3+ 19x2 + 9x -

9
Mathematics
2 answers:
charle [14.2K]3 years ago
5 0
3x^3<span> + 17</span>x^2<span> + 21</span>x<span> - 9

this is the correct answer for this problem.</span>
vovangra [49]3 years ago
5 0

Answer:

3x^3 + 17x^2 + 21x - 9

Step-by-step explanation:

(x^2 + 6x + 9)(3x - 1)

Multiply each term in first parenthesis with 3x-1

x^2 times 3x-1 becomes 3x^3 -x^2

6x times 3x-1 becomes 18x^2 -6x

9 times 3x-1 becomes 27x -9

Now we combine like terms

3x^3 -x^2 + 18x^2 -6x + 27x - 9

3x^3 +17x^2 +21x -9

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If 33mn + 10 = 38mn, then what is the value of -3/2mn?
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100 points / please help, im lost
Yakvenalex [24]

Answer:

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Step-by-step explanation:

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3 years ago
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1.Kori spent $46.20 on 12 gallons of gasoline. What was the price per gallon?
spin [16.1K]

1: B $3.85

2: C The rabbit; 14 miles per hour

3: C 2 1/2 miles

1. Reason: To find the price per gallon, all you need to do is divide 46.20 by 12 to get 3.85

2. Reason: To find which animal is faster all you have to do is subtract the greater number, which is the rabbit that travels 35 miles per hour from the smaller number which is the fox that travels 21 miles.

Subtract: 35-21= 14. So the rabbit is faster by 14 miles.

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So, Randy will travel 2 1/2 miles in a hour.

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3 years ago
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