Answer the question or complete the sentence to make a true statement.The sum of a negative number and 0 will always be a number.
A. Positive
B. Negative
Answer: B
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Use scientific notation to solve the problem.A computer can do one calculation in 1.4 × 10-7seconds. 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 × 105 sec D. 1.4 × 1012 sec
Evaluate the integral.
A. -14 B. 7 C. 14 D. -7
Calculate the flux of the field F across the closed plane curve C.F = yi - xj; the curve C is the circle (x - 3)2 + (y - 8)2 = 64
A. 96 B. 48 C. -48 D. 0
Solve the problem.Anita receives a promotional offer from a long-distance phone company of $0.03 per minute for long-distance calls. If she spends between $6 and $18 on long distance calls in the first month, the offer will be extended by an extra month. If she spends more than $18 in the first month, the offer will be extended by an additional two months. For what range of minutes must Anita use long distance in the first month, if the offer is to be extended by an extra month?
A. 
B. 
C. 
D. 