3 years ago

Help with algebra pleaseee

Mathematics

2 answers:

Sati [7]3 years ago

8 0

Answer: 2

Explanation:

(3x^2 + 5x - 6) + (-x^2 + 3x + 9)

3x^2 + 5x - 6 - x^2 + 3x + 9

2x^2 + 8x + 3

maria [59]3 years ago

4 0

Answer:

option 2 is correct

mark this as brainliest!

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Flura [38]

Answer:

Step-by-step explanation:

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2 years ago

Solve. 14/n+7=10/n-4 N=5.25 N=3.5 N=31.5 N=30

Ilya [14]

Answer:

n=31.5

Step-by-step explanation:

The given question is:

$\frac{14}{n+7}=\frac{10}{n-4}$

Cross multiply to get:

$14(n-4)=10(n+7)$

Expand the parenthesis:

$14n-56=10n+70$

Group similar terms:

$14n-10n=70+56$

Combine the like terms

$4n=126$

Divide both sides by 4

$n=\frac{126}{4}$

n=31.5

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3 years ago

What is 2 1/8 (Mixed number) x (times) 34 (Whole number) ? PLEASE HELP ASAP

Lerok [7]

It's 289/4 or 72.25

4 0

2 years ago

How do I get the answer to this

Crank

The answer to this question is 8.6 or c

5 0

2 years ago

-1/6 + 2/3 (9 - 3/4) - 1/2 I’m confused if someone can help

emmainna [20.7K]

Answer:

4.83333333333

Step-by-step explanation:

I'm sorry if that is wrong but I believe it is right

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3 years ago