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Yuliya22 [10]
3 years ago
11

The population of Preston is 89,000 and is decreasing by 1.8% each year. Write a formula that models the population as a functio

n of time t.
Mathematics
1 answer:
Fiesta28 [93]3 years ago
6 0

Answer:

P=89,000e^{-.018t}

Step-by-step explanation:

I used this equation formula and just input the numbers given:

P=P_{o}e^{rt}

Where

P= final population

P_{o} = original population

r = rate of growth

t = time

Hope this helps!

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Mrrafil [7]

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Answer:

  47°

Step-by-step explanation:

The law of sines helps you find angle T. From there, you can find angle S.

  sin(T)/t = sin(R)/r

  sin(T) = (t/r)sin(R) = (10/20)sin(104°)

  T = arcsin(sin(104°)/2) ≈ 29°

Then angle S is ...

  S = 180° -R -T = 180° -104° -29°

  ∠S = 47°

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3 years ago
The part (aka "is") = 8 and the percent is 42, what is the whole (aka
marysya [2.9K]

Answer:

33

Step-by-step explanation:

If you simplify what the question is saying, it's basically..

8 is 24% of <u>what number?</u>

To find out, you can simply set up an equation.

((24% = 0.24 as a decimal (move the decimal point two times to the left))

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To solve, you just need to divide 8 ÷ 0.24. So, N = 33.333 repeating.

The question says to round to the nearest whole number, so the answer would just be 33.

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3 years ago
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Answer:

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Step-by-step explanation:

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4 years ago
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Answer:

The answer is that c = 6

Step-by-step explanation:

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A box is filled with black (B), white (W), red (R), green (G), and pink (P) phone cases. A phone case is selected at random.
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The Sample Space for the experiment is {B, W, R, G, P}. :) The answer to the second question is 7/12. 
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