Solve the problem. Express the answer in scientific notation to two decimals unless requested otherwise.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 × 1012 sec
B. 1.4 × 105 sec
C. 1.4 × 10-7 sec
D. 1.4 × 106 sec
Answer: B
Mathematics
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C. 
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