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Marianna [84]
3 years ago
5

Factor 4x^2+8x-21 completely

Mathematics
2 answers:
chubhunter [2.5K]3 years ago
7 0
4x^2 + 8x - 21 =
(2x - 3)(2x + 7) <==
PtichkaEL [24]3 years ago
5 0
4x^2+8x-21

4x^2-6x+14x-21

2x(2x-3)+7(2x-3)

(2x+7)(2x-3)


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Jimmy paid off a mortgage by paying $775 per month for 12 years. What was the original amount of the mortgage if the interest ra
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Answer:

The original amount of the mortgage was $66231.45.

Step-by-step explanation:

In order to find the original amount of the mortgage, you can use the following formula to calculate the present value:

PV=FV/(1+r/n)^nt

PV=present value

FV=future value= 775*12*12=111.600

r=rate of interest=0.0440

n= number of compounding periods= 2

t= time in years=12

Now, you can replace the values on the formula:

PV=111600/(1+(0.0440/2))^2*12

PV=111600/(1.022)^24

PV=111600/1.685

PV=66231.45

According to this, the answer is that the original amount of the mortgage was $66231.45.

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3 years ago
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Answer:

Step-by-step explanation:

15x-6y=48

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3 years ago
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mixas84 [53]

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4 0
2 years ago
Help ASAP please! I dont understand.
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All of the box numbers are decide by the bottom numbers. Ex: 3+4=7, the top box is seven above 3 and 4. So you would add 16 and 17 which is 33. The answer is 33.

7 0
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Tatiana [17]

Answer:

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