Find the difference.-12 - (-1)
A. 11
B. -13
C. 13
D. -11
Answer: D
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Find ? to four significant digits for 0 ? ? < 2?.csc ? = -1.409
A. 0.7891, 5.494 B. 8.808, 0.6172 C. 3.931, 5.494 D. 3.931, -3.066
Solve the problem by guessing and adjusting.Ramon spent twice as long on his English homework as he did on his History homework. If he spent 60 minutes on the two combined, then how long did he spend on his History homework?
A. 10 minutes B. 12 minutes C. 40 minutes D. 20 minutes
Solve the problem.The concentration of a certain drug in the bloodstream x hr after being administered is approximately 
Use the differential to approximate the change in concentration as x changes from 1 to 1.52.
A. 0.42 B. 0.14 C. 0.18 D. 0.20
Find the range of the given function.f(x) = 4x2 + 8x - 1
A. [-5, ?) B. [-1, ?) C. (-?, 5] D. (-?, 1]