Find an expression for dy/dx.y = u2 and u = 3x - 2
A. 12x - 6
B. 9x - 6
C. 18x
D. 18x - 12
Answer: D
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Calculate the direction of 
and the midpoint of line segment P1P2.P1(4, 2, 2) and P2(14, 12, 7)
A. 
i + 
j + 
k; 
B. 
i + 
j + 
k; 
C. 
i + 
j + 
k; 
D. 
i + 
j + 
k; 
Perform the indicated operation and simplify.
+ 
A. 
B. 
C. 3m - 1
D. 
Solve the problem.Suppose that the odds of winning the grand prize in a raffle are 1 to 15. What is the probability of winning the grand prize?
A. 
B. 
C. 
D. 
E. none of these
Tell whether a linear model or a quadratic model is appropriate for the data. If linear, tell whether the slope should be positive or negative. If quadratic, decide whether the leading coefficient a of x2 should be positive or negative.
A. quadratic; negative B. linear; positive C. quadratic; positive D. linear; negative