Simplify the expression. Write answer with positive exponents. Variables are positive real numbers.(b3)2/3
A. b1/3
B. b5/3
C. b2
D. b2/9
Answer: C
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Write an equation for a function that has a graph with the given characteristics.The shape of y = ?x? is vertically stretched by a factor of 2.8. This graph is then reflected across the x-axis. Finally, the graph is shifted 0.65 units downward.
A. f(x) = 2.8?x? - 0.65 B. f(x) = 2.8?-x? - 0.65 C. f(x) = -2.8?x? - 0.65 D. f(x) = 2.8?x - 0.65?
Evaluate the integral.
A. 72 B. 432 C. 54 D. 324
Solve the problem.A theater has 24 rows with 23 seats in the first row, 28 in the second row, 33 in the third row, and so forth. How many seats are in the theater?
A. 3864 seats B. 1932 seats C. 3984 seats D. 1992 seats
Find the center of mass of the thin rod with the given density function.Find the center of mass of a thin rod that lies along the first-quadrant portion of the circle
if the density of the rod is 
A. 
= 
?, 
= 
?
B. 
= 0, 
= 
?
C. 
= 2?, 
= 2?
D. 
= 
?, 
= 
?