Find the product AB, if possible.A = 
, B = 
A. 
B. 
C. AB is not defined.
D. 
Answer: B
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Solve.A car travels 400 miles on level terrain in the same amount of time it travels 160 miles on mountainous terrain. If the rate of the car is 30 miles per hour less in the mountains than on level ground, find its rate in the mountains.
A. 80 mph B. 40 mph C. 50 mph D. 20 mph
Graph the function by starting with the graph of the basic function and then using the techniques of shifting, compressing, stretching, and/or reflecting.f(x) = 
+ 5
A. 
B. 
C. 
D. 
Solve the equation.
= 
A. x = -4, x = 6
B. x = 4, x = 6
C. x = -4, x = -6
D. x = - 
, x = 
Determine, without graphing, whether the given quadratic function has a maximum value or a minimum value and then find that value.f(x) = -4x2 - 2x - 5
A. minimum; - 
B. maximum; 
C. maximum; - 
D. minimum; 