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tensa zangetsu [6.8K]
3 years ago
12

SOMEONE PLEASE JUST ANSWER THIS FOR BRAINLIEST!!!

Mathematics
1 answer:
castortr0y [4]3 years ago
6 0

ANSWER

Step 1

EXPLANATION

The given polynomials are:

( {k}^{2}  + 2k - 13) - ( - 3 { k}^{2}  + 9k + 1)

Annie's expansion should have been,

{k}^{2}  + 2k - 13+ 3 { k}^{2}   -  9k  - 1

But she got:

{k}^{2}  + 2k - 13 + 3 { k}^{2}  + 9k + 1

Therefore Annie made an error in the first step.

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THIS IS URGENT
german
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Gabriel uses 0.4 gallon of gasoline each hour mowing lawns. How much gas does he use in 4.2 hours
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3 years ago
The population of Brazil was 162,300,000 in 1995. It was growing at a rate of about 2% per decade. Predict the population, to th
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Answer:

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Step-by-step explanation:

In this question, we are tasked with calculating the population of Brazil given its population in 1995 and her growth rate per decade.

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This can be written as P = I(1 + r)^n

where P is the population in 2015 which we are looking for,

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We plug these values into the equation above;

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P = 162,300,000(1.02)^2

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Answer:

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Step-by-step explanation:

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