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levacccp [35]
3 years ago
8

HELP! I'll give brainliest. I'm trying to help my brother and he is failing so please help me. Just..Please?!!!!!!

Mathematics
2 answers:
Aneli [31]3 years ago
6 0
I think it might be 35.77709
vovangra [49]3 years ago
5 0

Answer:

35.77709

Step-by-step explanation:

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Find the sum.<br> 5<br> 2a<br> a? + 2a + 1<br> +<br> a2 + 4a + 3
Salsk061 [2.6K]

\frac{2a}{a^2+2a+1}+\frac{5}{a^2+4a+3}

Factor the denominators.

\frac{2a}{\left(a+1\right)^2}+\frac{5}{\left(a+1\right)\left(a+3\right)}

Adjust fractions based on LCM.

\frac{2a\left(a+3\right)}{\left(a+1\right)^2\left(a+3\right)}+\frac{5\left(a+1\right)}{\left(a+1\right)^2\left(a+3\right)}

Denominators are same, so add the fractions.

\frac{2a\left(a+3\right)+5\left(a+1\right)}{\left(a+1\right)^2\left(a+3\right)}

Expand the numerator.

\frac{2a^2+11a+5}{\left(a+1\right)^2\left(a+3\right)}

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3 years ago
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rewona [7]
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A scale drawing of a city has an area of 100 inches. Each inch on the drawing represents 2 miles. What is the area of the city?
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Step-by-step explanation:

100 x 2

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Your investment adviser tells you that Acme Widgets has a 40% chance of increasing your investment by $10,000, and Gimbles Stuff
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Step-by-step explanation:

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