If g(x) is the inverse of f(x) and f(x)=4x+12, what is g(x)?

see explanation

Step-by-step explanation:

let f(x) = y, then

y = 4x + 12

To obtain the inverse g(x), rearrange making x the subject

4x + 12 = y ( subtract 12 from both sides )

4x = y - 12 ( divide both sides by 4 )

x =

Change y back into terms of x

g(x) = ← inverse of f(x)

the answer would be 150 books

step-by-step explanation:

if you divide 300 by 2 you will get 150

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.