Graph the pair of parametric equations in the rectangular coordinate system.x = 7 cos t , y = 9 sin t, 0 ? t ? 2?
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Simplify the expression. Assume that all variables are positive when they appear.
A. 4y8 B. 2y16 C. 2y8 D. 2y14
Mathematics
Solve the problem.George has 600 donuts and 600 bagels. He wants to divide his bagels and donuts into stacks so that there are the same number of pastries in each stack. What is the greatest number of pastries that he can place in each stack?
A. 602 B. 600 C. 601 D. 603
Mathematics
Find the area of the shaded region.
y = -x4
A. 
B. 2
C. 
D. 
Mathematics
Solve.A truck engine is rated at 186 hp and is found to deliver only 101 hp to the transmission. What is the efficiency of the process to the nearest tenth of a percent?
A. 184.1% B. 53.4% C. 181.4% D. 54.3%
Mathematics