Factor.16x2 - 56x - 32
A. (2x - 1)(8x + 32)
B. (16x - 8)(x + 4)
C. 8(2x + 1)(x - 4)
D. 8(2x - 1)(x + 4)
Answer: C
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Find the area of the specified region.Shared by the circles r = 4 cos ? and r = 4 sin ?
A. 2(? - 2)
B. 2(2 - 
)
C. 4?
D. 
(4? - 3
)
Perform the indicated row operations on the given matrix.
A. 
B. 
C. 
D. 
Simplify the expression using the order of operations. Write the answer as an improper fraction where appropriate.
? (-12) ÷ (-4)
A. 3 B. 48 C. -3 D. -48
Determine which purchase has the lower unit price.You have a coupon for 81 cents off Brand A cereal and a coupon for 37 cents off Brand B. A box of Brand A cereal costs $3.65 for 13.5 ounces. A box of Brand B cereal costs $4.63 for 18.5 ounces. If you use a coupon, which cereal is the better buy?
A. Brand A B. Not enough information C. Brand B D. Equal value