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3 years ago

15

If each lap around the track is 400 meters and she runs 4 kilometers each day. How many laps around the track does she run in 3

days

1 answer:

pashok25 [27]3 years ago

8 0

<span>
4km = 4000m

Laps per day
4000m/400m
10laps

laps in 3 days
10 * 3
30 laps <-----

</span>

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Step-by-step explanation:

For this case we have the following function:

$h(t) = -6.3t^2 +53 t+24$

In order to maximize this function we need to take the first derivate respect the time and we have:

$h'(t) = -12.6 t +53$

Now we can set up the derivate equal to 0 and we have:

$-12.6 t +53 = 0$

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$t = \frac{53}{12.6}= 4.206$

For the second derivate respect the time we got:

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And the corresponding height would be:

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