1 year ago

Find (g*f)(3) f(x)= 7x + 8 g(x)= -1/x

Mathematics

1 answer:

Sophie [7]1 year ago

4 0

Answer:

-21-24/x

Step-by-step explanation:

f(x) is a function on his own which is f(x)=7x+8

we multiple it with another function which is g(x)=-1/x

that gives us (g*f)=-7-8/x

then multiple it by 3 we have -21-24x

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Answer: The the speed of elevators is 22.55.

Explanation:

It is given that observation deck of the willis tower in Chicago Illinois is 1353 feet above the ground elevators lift visitors to that level in 60 seconds.

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$\text{Average Speed}=\frac{\text{Total Distance}}{\text{Total Time}}$

From the given information the total distance is 1353 and the total time is 60 seconds. So by the above formula we get,

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Therefore, the speed of elevators is 22.55.

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soldier1979 [14.2K]

Answer:

x=2

Step-by-step explanation:

$10+4x=12+3x$
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FINAL ANSWER

x=2

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3 years ago

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