Simplify completely.
A. x4y2
B. x5y3
C. x4y3
D. xy3
Answer: B
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Use the 68-95-99.7 rule to solve the problem.At one college, GPA's are normally distributed with a mean of 3 and a standard deviation of 0.4. What percentage of students at the college have a GPA between 2.6 and 3.4?
A. 68% B. 99.7% C. 95% D. 84%
Eliminate the parameter t. Find a rectangular equation for the plane curve defined by the parametric equations.x = 4 sin t, y = 4 cos t; 0 ? t ? 2?
A. y2 - x2 = 16; -? < x < ?
B. y = x2 - 9; -2 ? x ? 2
C. x2 + y2 = 16; -4 ? x ? 4
D. y = 
= 16; -? < x < ?
Solve the problem.Find the due date for a loan made on September 14 for 90 days.
A. December 15 B. December 13 C. January 15 D. December 14
Perform the indicated operation for the given f(x) and g(x).
, 
Find 
A. 0 B. 10 C. 4 D. 45