Find any excluded values.
A. - 
B. 
, 1
C. 
D. 
Answer: D
Mathematics
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Graph the parabola or ellipse. Include the directrix that corresponds to the focus at the origin.r = 
A. 
B. 
C. 
D. 
Mathematics
Find the product.(3x + 2y)2
A. 3x2 + 12xy + 4y2 B. 9x2 + 12xy + 4y2 C. 9x2 + 4y2 D. 3x2 + 4y2
Mathematics
Solve the problem. Round to two decimal places unless otherwise indicated.Suppose the cost per ton, y, to build an oil platform of x thousand tons is approximated by y = 
. What is the cost per ton for x = 20?
A. $3125.00 B. $3000.00 C. $431.03 D. $25.00
Mathematics
An order of award presentations has been devised for seven people: Jeff, Karen, Lyle, Maria, Norm, Olivia, and Paul.In how many ways can the awards be presented so that Maria and Olivia will be next to each other?
A. 1680 B. 1440 C. 1220 D. 720
Mathematics