Graph the curve whose parametric equations are given.x = 3 cos t, y = - 3 sin t; 
? t ? 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Describe the graph of the polar equation.r cos ? = 13
A. Circle centered at origin with radius 13 B. Horizontal line through (0, 13) C. Line with slope 13 passing through the origin D. Vertical line through (13, 0)
Mathematics
Solve the problem.A radio telescope has a parabolic surface. If it is 1 m deep and 
wide, how far is the focus from the vertex?A = 20 mB = 1 m
A. 100 m B. 1 m C. 5 m D. 25 m
Mathematics
Determine the indefinite integral.
(Simplify the answer using the definitions of hyperbolic functions.)
A. 
+ C
B. x + 
+ C
C. cosh x + C
D. 
+ C
Mathematics
Use the rules for exponents to rewrite the expression and then evaluate the new expression. (-2)2(-2)3
A. -64
B. -32
C. 
D. 
Mathematics