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 × 1012 sec
B. 1.4 × 106 sec
C. 1.4 × 105 sec
D. 1.4 × 10-7 sec
Answer: C
Mathematics
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Provide an appropriate response.Divide: 
A. 104 B. 1 C. 4 D. 103
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Change the fraction to a decimal. Round as indicated.
ten thousandths
A. 0.3750 B. 3.7500 C. 0.7500 D. 0.1500
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Use the information given about the angle ? to find the exact value of the indicated trigonometric function.csc ? = -
, cos ? > 0Find cos 
.
A. 
B. -
C. -
D. 
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Find the general term, an, of the given geometric sequence.1, 
, 
, ...
A. an = 
B. an = 
C. an = 1 - 
n
D. an = 
Mathematics