The letters x and y represent rectangular coordinates. Write the equation using polar coordinates (r, ?).x2 = 4y
A. r sin2 ? = 4 cos ?
B. r cos2 ? = 4 sin ?
C. 4 sin2 ? = r cos ?
D. 4 cos2 ? = r sin ?
Answer: B
Mathematics
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Suppose you have the project consisting of the six tasks described in the following table.
Which project digraph below models the project described?
A. 
B. 
C. 
D. 
E. none of these
Mathematics
Use a graphing utility to obtain the plane curve represented by the given parametric equations.Witch of Agnesi: x = 2 cot t, y= 2 sin2 t, 0 ? t < 2?
A. 
B. 
C. 
D. 
Mathematics
Find the derivative of the function.
?
What will be an ideal response?
Mathematics
Rationalize the denominator. 
A. 
B. 
C. 
D. 
Mathematics