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Lorico [155]
3 years ago
7

Assume that $4,000 I deposited into an investment account doubled in value over a six year period. What annual interest rate mus

t I have earned over this period? Is the initial amount of the deposit relevant to the calculation of the annual interest rate? Why or why not?
Mathematics
1 answer:
Novay_Z [31]3 years ago
6 0

Answer:

Interest rate is about 12.246%

The initial deposit doesn't matter because when you divide both sides by the initial deposit you're always left with (1+i)ⁿ=2

Step-by-step explanation:

4000(1+i)^6=8000\\(1+i)^6=2\\1+i=\sqrt[6]{2} \\1+i=1.122462048\\i=.12246

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den301095 [7]

Answer:

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Step-by-step explanation:

the y int is (0,4), so b in y=mx+b is 4

the slope is -2, so the m in y=mx+b is -2

so, y=-2x+4 is your equation

6 0
2 years ago
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Write a declaration for a variable rate_of_pay that can hold values like 11.50 or 12.75.
hichkok12 [17]

Float rate_of_pay  a declaration for a variable rate_of_pay that can hold values like 11.50 or 12.75.

What is   float rate_of_pay?

  • In contrast to fixed (or unchangeable) interest rates, floating interest rates change on a regular basis. Companies that offer credit cards and mortgages frequently use floating rates.
  • Floating rates follow the market, a benchmark interest rate, an index, or both.

Is a fixed or floating rate preferable?

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float rate_of_pay

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Learn more about Float rate_of_pay

brainly.com/question/14128610

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7 0
1 year ago
What is 20% of $36<br> PLEASE HELP ME
Amanda [17]

Answer:

$7.20

Step-by-step explanation:

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1/5*36=36/5=7.20

Or you could straight up to 20%*36=7.20

4 0
3 years ago
Simplify (3 + 2i)(7 − 5i).
erma4kov [3.2K]
Rule needed: i^2 = -1
Standard form a + bi

(3 + 2i)(7 - 5i) FOIL
3 * 7 = 21
3 * - 5i = - 15i
2i * 7 = 14i
2i * -5i = - 10i^2 = - 10 * -1 = 10
Putting it all back together.
31 - i
8 0
2 years ago
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UkoKoshka [18]
The answer is 1.5 months

explanation:

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2.5 per month

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x = (3.75×1)/2.5

x = 3.75/2.5

x = 3/2 = 1.5 months
3 0
3 years ago
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