Simplify.
A. - 
B. 
C. 
D. 
Answer: B
Mathematics
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Multiply.(9x3)(8x2)
A. 72x5 B. -72x5 C. -72x6 D. 72x6
Mathematics
Perform the indicated operations.
÷ 
? 
A. 
B. r + s
C. r - s
D. 
Mathematics
A parabolic archway has the dimensions shown in the figure. Find the equation of the parabolic portion.
?
ft, 
ft, 
ft, 
ft
?
?
A. 
B. 
C. 
D. 
Mathematics
Eliminate the parameter t from the following and then sketch the graph:
?
?
A. ?
B.
C.
D.
E.
Mathematics