Solve the problem.What is the maximum product of two positive numbers whose sum is 32?
A. 16
B. 8
C. 256
D. 512
Answer: C
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Solve the problem.Two cars leave an intersection. One car travels north; the other east. When the car traveling north had gone 12 mi, the distance between the cars was 4 mi more than the distance traveled by the car heading east. How far had the east bound car traveled?
A. 20 mi B. 24 mi C. 16 mi D. 12 mi
Solve the problem.Consider the following simplified digital photograph that has a 3 × 3 grid with four gray levels numbered from 0 to 3. It shows a letter Y in black on a light gray background.
Let A be the 3 × 3 matrix that represents this figure digitally. Find the matrix which represents the entire picture becoming one shade lighter.
A. 
B. 
C. 
D. 
Solve.Find the area of the top of the table. Express the area as a product, then multiply and simplify. 
A. (144x2 - 312x - 169) sq in. B. (144x2 - 169) sq in. C. (x2 - 169) sq in. D. (144x2 + 312x - 169) sq in.
Multiply. Assume that all variables represent non-negative real numbers.(
+ 4)(
+ 5)
A. 
+ 9
+ 20
B. x + 9
+ 20
C. x2 + 9
+ 20
D. x + 9
+ 20