Simplify the expression.y ? y3
A. y3
B. y4
C. 2y3
D. 2y4
Answer: B
Mathematics
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Find 
.y = (x + 8) sin x
A. cos x ln (x + 8) + 
B. sin x ln (x + 8)
C. (x + 8) sin x
D. 
(x + 8) sin x
Mathematics
Apply Green's Theorem to evaluate the integral.
(7y dx + 5y dy)C: The boundary of 0 ? x ? ?, 0 ? y ? sin x
A. 0 B. 4 C. -2 D. -4
Mathematics
Solve the problem.The average of a data set consisting of 8 numbers is 5. The smallest of the numbers is Min = 1. The largest of the numbers is Max = 9. Which of the following is the smallest possible value of the standard deviation of this data set?
A. 2 B. 4 C. 1 D. 0 E. none of these
Mathematics
Change the polar coordinates (r, ?) to rectangular coordinates (x, y).
A. (0, -2) B. (0, 2) C. (2, 0) D. (-2, 0)
Mathematics