D.spinning a factor of 12
Answer:
On the moon, both will land at the same time. The marble resistance is comparable to it's gravitational acceleration at very fast speed (terminal velocity), so it's free fall acceleration is halted fairly slowly where as the coin is able to accelerate at the same rate (9.8 m/s^2) to a higher speed before air resistance cancels out gravity.
Step-by-step explanation:
For this case we have the following equations:

We must find 
By definition of composition of functions we have to:

So:

We must find the domain of f (g (x)). The domain will be given by the values for which the function is defined, that is, when the denominator is nonzero.

So, the roots are:

The domain is given by all real numbers except 0 and 3.
Answer:
x other than 0 and 3
Answer:
(4,0)
Step-by-step explanation:
add the 2 equations together
6x = 24
x=4
put x into the first equation
16+3y=16
y=0