Round the numbers so that there is only one non-zero digit, and estimate the answer. Then perform the indicated operation to find the exact answer.91.5 - 9.25
A. estimate: 91; exact: 92.38
B. estimate: 81; exact: 82.25
C. estimate: 91; exact: 91.28
D. estimate: 81; exact: 82.35
Answer: B
Mathematics
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Evaluate the improper integral or state that it is divergent.
A. 1 B. -1 C. Divergent D. 0
Mathematics
Graph.log (2.7 - 4x)
A. 
B. 
C. 
D. 
Mathematics
Solve.3x2 - 20x - 7 = 0
A. x = 
, x = - 
B. x = - 
, x = 7
C. x = - 
, x = 3
D. x = -3, x = 7
Mathematics
Find the volume. Use ? ? 3.14. Round to the nearest tenth when necessary.a rectangular solid with width = 5.7 yd, length = 6 yd, height = 5 yd
A. 171 yd3 B. 150 yd3 C. 205.2 yd3 D. 162.5 yd3
Mathematics