Simplify.-9 + 2 - 14 - (-12) + 19
A. 14
B. 10
C. -14
D. -28
Answer: B
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Set up an integral for the length of the curve.x = 7 tan y, 0 ? y ? 
A. 
B. 
C. 
D. 
Solve the inequality and write the solution set using interval notation; then graph the solution set on a number line. s2 - 3s - 18 < 0
A. (-?, -3) ? (6, ?)
B. (-?, -3)
C. (-3, 6)
D. (6, ?)
Solve.The new mural in the student union shown in the sketch below is in the shape of half an ellipse. Find the equation for the ellipse if the center of the ellipse is at point A.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Suppose that of the sons of right-handed fathers, 90% are right-handed and 10% are left-handed. Of the sons of left-handed fathers, 30% are right-handed and 70% are left-handed. (Assume that right-handed and left-handed fathers have sons in equal numbers.) Suppose that in the initial generation all of the fathers are right-handed. What is the percentage of their grandsons that are left-handed?
A. 10% B. 1% C. 16% D. 84% E. none of these