Graph the pair of parametric equations with the aid of a graphing calculator.x = 6 cos t + 2 cos 3t, y = 6 sin t - 2 sin3t, 0 ? t ? 2?
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. 0 B. -12 C. 1 D. -4
Mathematics
Solve the problem.Karen and Ivan traveled at 115 kilometers/hour for 4.7 hours. Their total trip will be 630 miles long. How many miles do they still need to travel? (Round your answer to the nearest whole mile, if necessary.)
A. 559 mi B. 90 mi C. 295 mi D. 474 mi
Mathematics
Simplify using the quotient rule.
A. 
B. 64
C. -64
D. 
Mathematics
Solve the equation by factoring.12x2 - 5x - 25 = 0
A. 
B. 
C. 
D. 
Mathematics