Solve the problem.If f(x) = x2 and g(x) = -1 + 5x, find (f ?g)(x) and find the domain of (f ? g)(x).
What will be an ideal response?
(f ?g)(x) = (-1 + 5x)2; Domain: all real numbers
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Solve the problem.Find the centroid of the rectangular solid defined by 
, 
, 
.
A. 
= 1, 
= 
, 
= 
B. 
= 2,
= 
, 
= 
C. 
= 
, 
= 3, 
= 
D. 
= 4, 
= 9, 
= 5
Decide whether the graph of the equation opens up, down, to the left, or to the right; and whether it is wider, narrower, or the same shape as the graph of 
(or 
).f(x) = -2x2 + 4x + 9
A. Down; narrower B. Up; wider C. Down; wider D. Up; narrower
Solve the problem.Six people from different occupations were interviewed for a survey, and their annual salaries were as 
and 
What is the mean annual salary for the six people?
Fill in the blank(s) with the appropriate word(s).
Perform the indicated operation and simplify.
+ 
- 
A. 
B. 
C. 
D. 