Answer:
18x^3+30x^2
Step-by-step explanation:
im smart.
Answer:
Step-by-step explanation:
Recall that the argument of the square root function y = √x must always be 0 or greater.
If you meant y=√x+8 -7, the domain is therefore [0, infinity).
But if you meant y=√(x+8) -7, the domain is [-8, infinity).
Those parentheses are important!
The pattern is subtracting 9
Hmm...this is difficult. The first thing I can think of is the relationship between age and time.

Since logs can't equal zero, 5 is your only solution.