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pogonyaev
3 years ago
11

It takes Andrew 720 seconds to take a shower. He spends an additional 420 seconds eating breakfast.

Mathematics
1 answer:
krok68 [10]3 years ago
4 0

Answer:

Andrew takes for a shower = 720 sec

1 min =60sec

720sec=12min

Andrew takes additional min for breakfast =420 sec

420 sec = 7min

time andrew take for both = 12+7

=19 min

Step-by-step explanation:

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3 years ago
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4 0
3 years ago
In 2013, the moose population in a park was measured to be 5,100. By 2018, the population was measured again to be 5,200. If the
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Answer:

P(t) = 5100e^{0.0039t}

Step-by-step explanation:

The exponential model for the population in t years after 2013 is given by:

P(t) = P(0)e^{rt}

In which P(0) is the population in 2013 and r is the growth rate.

In 2013, the moose population in a park was measured to be 5,100

This means that P(0) = 5100

So

P(t) = 5100e^{rt}

By 2018, the population was measured again to be 5,200.

2018 is 2018-2013 = 5 years after 2013.

So this means that P(5) = 5200.

We use this to find r.

P(t) = 5100e^{rt}

5200 = 5100e^{5r}

e^{5r} = \frac{52}{51}

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5r = \ln{\frac{52}{51}}

r = \frac{\ln{\frac{52}{51}}}{5}

r = 0.0039

So the equation for the moose population is:

P(t) = 5100e^{0.0039t}

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