3 years ago

If f(x) and f^-1(x) are inverse functions of each other and f(x) = 2x+5, what is f^-1(8) ? O -1 O 3/2 O 41/8 O 23

Mathematics

1 answer:

Nookie1986 [14]3 years ago

4 0

Answer:

Step-by-step explanation:

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Write a quadratic equation with a integer coefficients with roots x= 1/2 and x=-4

Misha Larkins [42]

The quadratic equation with roots a and b is given by:

$x^2-(a+b)x+ab=0$

Here a=1/2 and b=-4.

So the equation is given by:

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The quadratic equation is as shown above.

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1 year ago

F(b)=4-5b, when b is 8

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Answer:

Step-by-step explanation:

F(b)=4.5b

F(8)=4.5(8)

F(8)= 36

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3 years ago

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Jack read 9 books in 15 months. What was his rate of reading in months per book? Include units.

sladkih [1.3K]

Answer:

3/5 books

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Divide 9 by 15 to get 0.6

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2 years ago

If f(x) and f^-1(x) are inverse functions of each other and f(x) = 2x+5, what is f^-1(8) ? O -1 O 3/2 O 41/8 O 23​

If f(x) and f^-1(x) are inverse functions of each other and f(x) = 2x+5, what is f^-1(8) ? O -1 O 3/2 O 41/8 O 23