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mojhsa [17]
3 years ago
7

A country's population in 1992 was 72 million. In 1998 it was 76 million. Estimate the population in 2012 using the exponential

growth formula. Round your answer to the nearest million.
P=Ae^kt
Mathematics
1 answer:
ella [17]3 years ago
5 0
Your exponential growth formula, P(t) = A e^(kt), contains two unknown constants, A and k. Once you find them, you can find the population for any t. (I assume, t is measured in years.) From your "story", you have: 

<span>72 million = P(1992) = A e^(1992 k) </span>
<span>76 million = P(1998) = A e^(1998 k) </span>

<span>From these two equations, you can find the two unknowns A and k (do it yourself). Once you do, your answer is </span>

<span>P(2012) = A e^(2012 k)</span>
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If $17,000 is invested in an account for 25 years. Calculate the total interest earned at the end of 25 years if the interest is
KATRIN_1 [288]

Answer:

a.) $29,750.00   simple interest

b.) $75,266.35  Compounded annually

c.) $79,358.65 compunded  quarterly

d.) $80,332.11 compounded monthly

Step-by-step explanation:

a.) Formula: I = p x r x t

Where:

P is the principal amount, $17000.00.

r is the interest rate, 7% per year, or in decimal form, 7/100=0.07.

t is the time involved, 25....year(s) time periods.

So, t is 25....year time periods.

To find the simple interest, we multiply 17000 × 0.07 × 25 to get that:

The interest is: $29750.00

______________________________

b.) $75,266.35

c.) $79,358.65

d.) $80,332.11

5 0
3 years ago
HELP!! PLEASEE!
amm1812

Answer:

A

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The blue graph, g(x), is shifted down 8 units.

So the answer is f(x)-8 which is A

5 0
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Please help I can not find the answer
Ulleksa [173]

Answer: Its D. 10

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