Evaluate the integral.
dz
A. -cot 
+ C
B. csc 
+ C
C. -csc 
+ C
D. - 
csc 
+ C
Answer: C
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Solve the problem.The acceleration of gravity near the surface of Mars is 3.72 m/sec2. If a rock is blasted straight up from the surface with an initial velocity of 
(about 
how high does it go? (Hint: When is velocity zero?)
A. Approximately 971.1 meters B. Approximately 1942.25 meters C. Approximately 170 meters D. Approximately 22.85 meters
Solve the problem.Use the graph of f(t) = cos t given below to evaluate 
graphically.
A. -0.5 B. 1 C. 0.5 D. -1
Add.-93 + (-95)
A. 2 B. -2 C. 188 D. -188
Solve the problem.The school bake sale sold a total of 28 plates of brownies and slices of cake and collected a total of $103.50 for the sales. They sold 6 more plates of brownies than slices of cake. How many plates of brownies and slices of cake were sold?
A. 11 plates of brownies and 17 slices of cake
B. 
plates of brownies and 
slices of cake
C. 
plates of brownies and 
slices of cake
D. 17 plates of brownies and 11 slices of cake