Convert the rectangular equation to a polar equation that expresses r in terms of ?.y2 = 3x
A. r = 3 cot2 x
B. r = 3 cot x cscx
C. r = 9 cot x cscx
D. r2(cos ? + sin ?) = 3
Answer: B
Mathematics
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Find all the first order partial derivatives for the following function.f(x, y, z) = z(ex)y
A. 
= zyexy; 
= zxexy; 
= exy
B. 
= zxexy; 
= zyexy; 
= exy
C. 
= zyexy; 
= zxexy; 
= zexy
D. 
= zexy; 
= zexy; 
= exy
Mathematics
Graph the polar equation.r = 3?
A. 
B. 
C. 
D. 
Mathematics
Plot the point whose polar coordinates are given.(2, 2?/3)
A. 
B. 
C. 
D. 
Mathematics
Solve.Find the area of the top of the table. Express the area as a product, then multiply and simplify. 
A. (9x2 - 16) sq in. B. (9x2 - 24x - 16) sq in. C. (9x2 + 24x - 16) sq in. D. (x2 - 16) sq in.
Mathematics