Simplify the rational expression.
A. 3x2
B. 10
C. 10x2
D. 3x
Answer: A
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Determine whether the two pairs of numbers are proportional.3, 100 and 27, 90
A. Yes B. No
Find the potential function f for the field F.F = 2xex2+y2i + 2yex2+y2j
A. f(x, y, z) = ex2 + ey2 + C
B. f(x, y, z) = 
+ C
C. f(x, y, z) = ex2+y2 + C
D. f(x, y, z) = 2ex2+y2 + C
Solve the problem.A study was conducted to compare the average time spent in the lab each week versus course grade for computer students. The results are recorded in the table below. The linear model for this data is 
where x is the number of hours spent in the lab and y is grade on the test. Use this model to predict the grade of a student who spends 12 hours in the lab. Number of hours spent in labGrade (percent) 
A. 68.7 B. 66.3 C. 76.6 D. 62.3
Find the following.f'(16) if f(x) = 4x3/2 - 5x1/2
A. 
B. 
C. 
D. 