Answer:
60
Step-by-step explanation:
The function provided is:

The average rate of change of h(t) as time goes from t=a to t=b is expressed as:

This function can be reformulated as: 
The rocket's peak height is 231, which occurs at t=3.75 seconds.

The initial launch happens at: t=0
and 
The average rate of change from launch to max height is

Answer:
The center of the circle is at the coordinates (-4,6).
The radius measures 14 units.
Step-by-step explanation:
The general formula for a circle is as follows:

Where r denotes the radius and the center is specified at 
Specifics for this question:
We need to complete the squares to convert the equation into its standard format:
So

To complete the squares, each first degree term (8 and -12) is divided by two, yielding new terms (4 and -6). This allows us to express it as the square of (x+4) and (y-6). To balance the equation, we must incorporate the squares of 4 and -6 on the opposite side.


The center is located at the coordinates (-4,6).
The length of the radius is 