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3 years ago

15

the function f(x)=5x+12 models the amount of money in dollars, makes when cutting loans for x hours. How many dollars will alex

for 3 hours of loan-cutting work?

1 answer:

Andreas93 [3]3 years ago

6 0

Answer:

$27

Step-by-step explanation:

f(x) = 5x + 12

= 5(3) + 12

= 15 + 12

= 27

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Answer:

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Step-by-step explanation:

we would like to figure out the derivative of the following:

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$\displaystyle \frac{dy}{dx} = 2 {x}^{ -2} + 2 {x}^{ - 3}$

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$\displaystyle \frac{dy}{dx} = \frac{2 }{x^2}+ \frac{2}{x^3}$

simplify addition:

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Let 't' be the time taken by both of them working together , then we have the following equation:-

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Since 1 hour = 60 minutes

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