Eliminate the parameter t in the following:
?
?
A. 
, 
, 
B. 
, ,
C. 
, ,
D. 
, ,
E. 
, ,
Answer: D
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Give an appropriate answer.Given the function f(x, y) and the positive number ? as in the formal definition of a limit, find a positive number ? as in the definition that insures 
< ?.f(x, y) = (1 + cos x)(x + y); ? = 0.12
What will be an ideal response?
Calculate the value of the given function by using the indicated number of terms of the appropriate series.ln (0.89) (4 terms)
A. 0.8958282 B. -0.1162779 C. -0.1165303 D. -0.1043571
Rewrite the equation in standard form. Find the center or vertex. Identify the conic and sketch the curve.y2 - 18y - x + 83 = 0
A. parabola; vertex (2, 9);
x = (y - 9)2 + 2
B. parabola; vertex (2, 9);
x = (y - 9)2 + 2
C. parabola; vertex (9, 2);
x = (y - 9)2 + 2
D. parabola; vertex (9, 2);
x = (y - 2)2 + 9
Three neighbors need to locate their mailboxes so that the mail carrier will only need to make one stop each day for all three of them. They decide to choose a spot for the mailboxes so that each neighbor is required to walk the same distance from his/her home to the mailbox. If points A, B, and C represent the three homes, where should they place the mailboxes? Justify your answer.
