Solve the problem. Express the answer in scientific notation to two decimals.A computer can do one calculation in 1.4 × 10-7 seconds. How long would it take the computer to do a trillion (1012) calculations?
A. 1.4 × 10-7 sec
B. 1.4 × 106 sec
C. 1.4 × 1012 sec
D. 1.4 × 105 sec
Answer: D
Mathematics
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Solve the problem.The solid lies between planes perpendicular to the x-axis at x = -2 and x = 2. The cross sections perpendicular to the x-axis are circles whose diameters stretch from the curve 
to the curve 
Find the volume of the solid.
A. 49?
B. 49?2
C. 
?2
D. 
?2
Mathematics
Find the indicated term.If a1 = 6 and d = -2, find a8.
A. -10 B. 22 C. -8 D. 20
Mathematics
Solve the combined inequality. Write the solution in interval notation.0 ? 
< 4
A. 
B. 
C. 
D. 
Mathematics
Determine the vertical asymptote(s) of the given function. If none exists, state that fact.h(x) = 
A. x = -2, x = 2 B. x = -2, x = -6 C. none D. x = -2, x = 2, x = -6
Mathematics