Perform the requested operation or operations. f(x) = 4x + 7, g(x) = 3x2 find (f + g)(x).

After performing the requested operation you will get .

Step-by-step explanation:

It is very important to take into account that the expression is another way of writing the sum of two functions. It means that the expression equals the expression .

Now, it's time to replace the expressions of and into the previous equation.

Finally, after performing the requested operation you will get .

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.

answer: what are the following choices