Solve the problem.The area of a rectangular piece of cardboard shown is 714 square inches. The cardboard is used to make an open box by cutting a 5-inch square from each corner and turning up the sides. If the box is to have a volume of 1,320 cubic inches, find the dimensions of the cardboard that must be used.
A. 21 in. by 34 in.
B. 16 in. by 29 in.
C. 26 in. by 39 in.
D. 11 in. by 19 in.
Answer: A
Mathematics
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Find an equation of the line.Perpendicular to x = -8, through (-9, -12)
A. y = 
B. y = -12
C.
y = -  x -  | -  |
D. x = -9
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Solve the inequality, and graph the solution set.
? 2x
A. (-?, 4] ? [5, ?)
B. (-?, 0] ? [4, 5)
C. [0, 4] ? [5, ?)
D. [5, ?)
Mathematics
Perform the conversion. Round to the nearest hundredth when necessary.5 km to mi
A. 3.11 mi B. 8.05 mi C. 4.73 mi D. 5.3 mi
Mathematics
Find the exact value by using a difference identity.tan 255°
A. 
+ 2
B. 
- 2
C. - 
- 2
D. - 
+ 2
Mathematics