Add or subtract as indicated.6 - 0 - (-7) - 16 + (-1)
A. 14
B. -4
C. 28
D. 16
Answer: B
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Calculate the circulation of the field F around the closed curve C.F = 7x2yi + 7xy2j; curve C is r(t) = 5 cos ti + 5 sin tj, 0 ? t ? 2?
A. 14 B. 35 C. 70 D. 0
Solve the problem.100 employees of a company are asked how they get to work and whether they work full time or part time. The figure below shows the results. If one of the 100 employees is randomly selected, find the probability that the person does not work full time.
1. Public transportation: 7 full time, 6 part time2. Bicycle: 5 full time, 4 part time3. Drive alone: 35 full time, 28 part time4. Carpool: 6 full time, 9 part time
A. 0.43 B. 0.47 C. 0.53 D. 0.28
Solve by using the percent proportion 
= 
.488 is what percent of 409?
A. 
= 
; p = 119.32
B. 
= 
; a = 1995.92
C. 
= 
; p = 83.81
D. 
= 
; b = 119.32
Solve the problem.The polynomial G(x) = -0.006x4 + 0.140x3 - 0.53x2 + 1.79x measures the concentration of a dye in the bloodstream x seconds after it is injected. Does the concentration increase between 11 and 12 seconds?
A. Yes B. No