Given is a piecewise function which follows different expressions according the the value of input x.
Given 
It says to find f(-4) i.e. the value of function f(x) at x = -4.
At point x = -4, f(x) is x³, if -5 ≤ x ≤ 2.
So, f(-4) = (-4)³
f(-4) = -4 × -4 × -4
f(-4) = -64.
Hence, option A is correct i.e. -64.
The speed of the water in the 3 feet radius is 25 feet per second.
Answer:
1) x = 6
2) 129
Step-by-step explanation:
For equation 1:

Expression 2:
Apply PEMDAS Rule.

Hope this helps.
Answer: A
(-2,1)
Step-by-step explanation:
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