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umka21 [38]
3 years ago
11

The product of 9 and sum of a number x and 12

Mathematics
1 answer:
mr_godi [17]3 years ago
5 0

Answer:

9(x + 19)

Step-by-step explanation:

Product is a multiplication key word where you'll usually always put parenthesis when multiplying, and where the keyword sum comes you'd add x and 12 for your equation :)

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The land area of Charlotte, NC is approximately 3 x 102 square miles. There are 6.4 x 102 square acres in a square mile. How man
Murrr4er [49]

Answer:

2.13 X 104 square acres

Step-by-step explanation:

Divide 6.4 acres by 3 miles = factor of 2.13

Therefore the answer must be 2.13 X 104 square acres

5 0
3 years ago
What is the answer to this equation?<br> 1/2 (4i+8)=-2
Flauer [41]

Answer:

If your looking for I the answer is -3

Step-by-step explanation:

Simplify both sides of the equation

1/2(4i+8)=-2       - Distribute

(1/2) (4i) + (1/2) (8) = -2

The subtract 4 from both sides

Then divide both sides by 2

5 0
3 years ago
What is the surface area of this prism? of 4ft 8ft 10ft​
Svetlanka [38]

the answer is 304

Step-by-step explanation:

write the formula and Substitute the Numbers.

I hope This Helps!

7 0
2 years ago
The ratio of boys to girls in the cafeteria is 2:3. If there are 135 kids in the cafeteria, how many are boys?
OLga [1]

Answer:

Step-by-step explanation:

2+3=6

135/6=22.5

22.5x2=45

6 0
2 years ago
Read 2 more answers
The completely factored form of 2d^4 + 6d^3 - 18d^2 - 54d is
Pachacha [2.7K]
The first step we take is to factor out a GCF:

2d(d³ + 3d² - 9d - 27)

Now, we can factor what's in the parenthesis by grouping (don't forget to keep the 2d we factored out):

2d[d²(d+3) -9(d+3)]
2d(d²-9)(d+3)

d²-9 can still be factored because it is the difference of two squares:

2d(d+9)(d-9)(d+3)

That is the completely factored form.
3 0
3 years ago
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