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satela [25.4K]
3 years ago
8

Okay, I’m having a hard time answering these problems. My math teacher explained it but I still just don’t understand. Can any o

f you out there help me? ASAP.

Mathematics
1 answer:
Tju [1.3M]3 years ago
6 0
You just need to match the terms that are the same. Let's look at number one.
2x^2 + 4x +1 + 3x^2 +6x +5 the matching parts:
the 2x^2 and the 3x^2 go together. That means you can combine them here they are positive so you add them.
The 4x and the 6x go together they both only have an x with them. They are both positive so you can add them together.
Last you have a 1 and a 5. These are matching so you can combine them too. They are both positive too so just add them together.
So your final answer would be 5x^2 + 10x + 6. Does that make sense?

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<h2>58°</h2>

Step-by-step explanation:

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A bank loans a family $90,000 at 4.5% annual interest rate to purchase a house. The family agrees to pay the loan off by making
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Using it's formula, it is found that the monthly payment should be of $688.49 in order to pay off the debt in 15 years.

<h3>What is the monthly payment formula?</h3>

It is given by:

A = P\frac{\frac{r}{12}\left(1 + \frac{r}{12}\right)^n}{\left(1 + \frac{r}{12}\right)^n - 1}

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For this problem, the parameters are given as follows:

A = 90000, r = 0.045, n = 15 x 12 = 180.

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A = P\frac{\frac{r}{12}\left(1 + \frac{r}{12}\right)^n}{\left(1 + \frac{r}{12}\right)^n - 1}

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More can be learned about the monthly payment formula at brainly.com/question/22846480

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