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Zanzabum
3 years ago
6

If f(x) = -3x^4 - 2x^3 + 3x^2 and g(x) = 3x^4 - 4x^3 + x^2 then f(x) + g(x) =

Mathematics
1 answer:
Alekssandra [29.7K]3 years ago
7 0

Answer:

c. -3×^4-6×^3+4×^3

Step-by-step explanation:

yftxjcucududcjcjcuxjcuducckghxtadvjxj

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The population of a city is 451,400. The population is expected to decrease at a rate of 3.2% each year.
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Answer:

Find out the what function equation represents the population of the city after t years .

To prove

The population of a city is 451,400. The population is expected to decrease at a rate of 3.2% each year.

This can be represented by exponential decreasing function.

f(t) = a (1 - r)^{t}

Where a is the initial value.

r is the rate in decimal form

t is the time.

Here

a = 451,400

3.2 % is written in the decimal form.

= \frac{3.2}{100}

= 0.032

Put in the formula

f(t) = 451400 (1 - 0.032)^{t}

f(t) = 451400 (0.968)^{t}

Therefore the decrease in the population of the city after t years is represented by

f(t) = 451400 (0.968)^{t}



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