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Alik [6]
3 years ago
9

Will Mark Brainliest

Mathematics
2 answers:
Elis [28]3 years ago
8 0

Answer:

<h2><u>D) x = -2 ±7<your answer</u></h2>

Step-by-step explanation:

Solve the quadratic equation by completing the square.

x^2 + 4x - 3 = 0

A) x = 4 ±7

B) x = 2 ±7

C) x = -4 ±7

<u>D) x = -2 ±7</u>

GaryK [48]3 years ago
5 0

The correct answer is D

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If the question is referring to the least common multiple it is 24
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3 years ago
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If the purchase price for a house is $218,500, what is the monthly payment if you put 3.5% down for a 30 year loan with a
sashaice [31]

Answer:

218,500 - (3.5% down payment) =

210,852.50

30 years = 360 months

rate 6.5%

Use the loan payment formula (REALLY complex - see attached).

rate = 6.5/1,200 = 0.005416667

monthly payment = (rate + [rate / (((1 + rate)^months) -1)] * principal

monthly payment = (0.005416667 + [0.005416667 / (((1.005416667)^360)-1)] * principal

monthly payment = (0.005416667 + [0.005416667 / (((1.005416667)^360)-1)] * principal

monthly payment = 0.005416667 + [(0.005416667 / 6.9917988084 -1)] *  210,852.50

monthly payment = 0.005416667 + [(0.005416667 / 5.9917988084)] *  210,852.50

monthly payment = 0.005416667 + [(0.005416667 / 5.9917988084)] *  210,852.50

monthly payment = (0.005416667 + 0.0009040135) * 210,852.50

monthly payment = 0.0063206805 * 210,852.50

monthly payment = 1,332.73

Answer is a.

3 0
3 years ago
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How long does it take for an investment to double in value if it is invested at 10​% compounded monthly question mark monthly? 
Margaret [11]
The first step to determining the answer to this item is to calculate for the effective interest using the equation,

                  ieff = (1 + i/m)^m - 1
where ieff is the effective interest, i is the given interest and m is the number of compounding period.


Part A: m in this item is equal to 12.
Substituting,
                ieff = (1 + 0.10/12)^12 - 1 = 0.1047

The amount of money after n years is calculated through the equation,
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Part B: For the continuously compounding,
               An = Ae^(rt)
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Hence, the answers:
<em>Part A: 6.96 years</em>
<em>Part B: 6.93 years</em>

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Step-by-step explanation:

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