Solve the problem.The amount of particulate matter left in solution during a filtering process is given by the equation 
where n is the number of filtering steps. Find the amounts left for 
and 
. (Round to the nearest whole number.)
A. 600, 19
B. 300, 19
C. 300, 9
D. 300, 4800
Answer: B
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.(9p + 10)(9p - 10)
A. p2 - 100 B. 81p2 + 180p - 100 C. 81p2 - 100 D. 81p2 - 180p - 100
Mathematics
Solve the given inequality (a related function is graphed).
< 0 
A. [2, 6] B. (-?, 2) ? (6, ?) C. (-?, 0) ? (2, 6) D. (-?, 2] ? [6, ?)
Mathematics
Add or subtract terms whenever possible.3
+ 
A. 11
B. 5
C. 4
D. 3
Mathematics