Solve the problem.A box with no top is to be constructed from a piece of cardboard whose width measures x in. and whose length measures 3 in. more than its width. The box is to be formed by cutting squares that measure 2 in. on each side from the four corners, and then folding up the sides. If the volume of the box will be 140 in.3, what are the dimensions of the piece of cardboard?
A. 14 in. by 11 in.
B. 19 in. by 16 in.
C. 17 in. by 14 in.
D. 24 in. by 16 in.
Answer: A
Mathematics
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, tan ? > 0Find cos 
.
A. 
B. 
C. 
D. 
Mathematics
Find area of figure. Round to the nearest hundredth if necessary.Find the area of a square measuring 11 km on a side.
A. 242 km2 B. 22 km2 C. 44 km2 D. 121 km2
Mathematics
Find the determinant.
A. 60 B. -10 C. 180 D. -60
Mathematics
Solve . Round the answer to three decimal places.2x = 
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Mathematics