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Vinvika [58]
3 years ago
7

How much would $400 invested at 9% interest compounded continuously be worth after 3 years? Round your answer to the nearest cen

t.
Mathematics
2 answers:
iris [78.8K]3 years ago
7 0

Answer:

$523.99

Step-by-step explanation:

We are asked to find the final amount amount that we will get after investing $400 at a rate of 9% interest compounded continuously after 3 years.

We will use compound interest formula to solve our given problem.

A=Pe^{rt}, where,

A = Final amount after t years,

P = Principal amount,

r = Annual interest rate in decimal form.

9\%=\frac{9}{100}=0.09

A=400e^{0.09(3)}

A=400e^{0.27}

A=400(1.3099644507332473)

A=523.98578029329892

A\approx 523.99

Therefore, the amount will be worth $523.99 after 3 years.

Natalka [10]3 years ago
3 0
The formula to that equation:

A(t)=p *e^rt

P is the principle amount invested 400
R is the rate, 0.09 T is the 3 years.

Solve from there.
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Step-by-step explanation:

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28 = a(2)^3 + b(2)^2 + c(2) + d

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<em>(4, 220)</em>

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<u>Step 4:  Solve using the fourth point</u>

<em>(-2, -20)</em>

-20 = a(-2)^3 + b(-2)^2 + c(-2) + d

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<u>Step 5:  Combine the first and fourth equations</u>

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