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Keith_Richards [23]
3 years ago
5

A driver averages 42 miles per hour and took 15 hours to travel between two cities what is the distance between the two cities

Mathematics
1 answer:
pishuonlain [190]3 years ago
5 0

Answer:

The distence bettween the two cities is 630miles

Step-by-step explanation:

So you take 42 and multiply it by 15 and you get 630.

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If f(x) is an exponential function where f(-1.5) 26 and
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Answer:

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Step-by-step explanation:

Given

f(-1.5) = 26

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Required

f(10)

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f(x) = ab^x

f(-1.5) = 26 impleies that:

26 = ab^{-1.5} --- (1)

f(5.5) = 7 implies that

7 = ab^{5.5} --- (2)

Divide (2) by (1)

26/7 = ab^{-1.5}/ab^{5.5}

3.71429 = b^{-1.5+5.5}

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Take 4th root

b = 1.39

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26 = a * 1.39^{-1.5}

26 = a * 0.6102

Solve for (a)

a = 26/0.6102

a = 42.61

f(10) is calculated as:

f(10) = ab^{10}

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