1 year ago

Which of the following could be rewritten as an addition problem of two integers with the same sign?

1 answer:

3 0

-8-10
because it can also be written as -8 + -10 instead of -8 - 10

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Mumz [18]

We have

$81-49n^4=9^2-(7n^2)^2$

so this is indeed a difference of squares. Factorizing would give

$81-49n^4=(9-7n^2)(9+7n^2)$

making the answer D.

We can further factor the first term here and write

$9-7n^2=3^2-(\sqrt 7\,n)^2=(3-\sqrt7\,n)(3+\sqrt7\,n)$

but that's clearly out of the scope of this question.

7 0

2 years ago

Bond [772]

Answer:

b. is $34 per ounce

Step-by-step explanation:

If the production cost were less, a competitor would drive the price down. If the production cost were more, the supplier would go out of business.

Since we're at equilibrium, the production cost must be equal to $34 per ounce.

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3 years ago

Pavlova-9 [17]

18.75%

How much is 15 out of 80 written as a percentage? Convert fraction (ratio) 15 / 80 Answer: 18.75%

plz mark me as brainliest :)

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2 years ago

Nadya [2.5K]

Your answer should be C. 3x^3√2

3 0

2 years ago

vova2212 [387]

Answer:

0.28

Step-by-step explanation:

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2 years ago