Factor.8x4 - 18x3 + 9x2
A. x(4x + 3)(2x + 3)
B. x2(8x - 1)(x - 9)
C. (8x2 + 3)(x2 + 3)
D. x2(4x - 3)(2x - 3)
Answer: D
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Solve the problem.Let f(x) = 
. Find a function y = g(x) so that (f ? g)(x) = x.
A. g(x) = x(x - 9)
B. g(x) = 
C. g(x) = 
D. g(x) = 
The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport. 
At what time was the temperature the highest?
A. 2 p.m. B. 5 p.m. C. 11 a.m. D. 1 p.m.
Subtract.-978 - (-1025)
A. -2003 B. -47 C. 47 D. 2003
Solve the problem. A reasonable quadratic model for the population of a certain city is found to be 
where B(t) is the population (in thousands) of the city in the year that is t years since 2002. A reasonable quadratic model for the number of residents of that city who were born outside the United States is 
where F(t) is the number (in thousands) of foreign-born residents of the city in the year that is t years since 2002. Let P(t) be percentage of residents of the city who were born outside the United States in the year that is t years since 2002. Find an
equation of P.
A. P(t) = 
B. P(t) = 
C. P(t) = 
D. P(t) = 