Answer:
the answer for your question is 1200pi
The answer is 42.80 , 2.28 is what they saved and i got the .80 cents because i rounded up from .78
You cannot factor it, so there is no simplification. The Constants "4" and "9" do not share a common factor, therefore, you cannot simplify it. However, if it was a number such as "8" replacing "9", then you can simplify by doing:
4(x^2 - 2) = 4x^2-9
If you want a answer for this you need to show the graph to us
Answer:

Step-by-step explanation:
we have

where
t is the time in seconds
h is the dolphin's height in feet
we know that
When the dolphin return to the water the value of h(t) is equal to zero
so
For h(t)=0


Simplify



see the attached figure to better understand the problem