Simplify.9.5 ? 16.5 + 17.6 ? 12.8
A. 2296.9
B. 4146.6
C. 2231.7
D. 382.03
Answer: D
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Decide if the answer is reasonable or unreasonable by using front end to estimate the answer. If the exact answer is not reasonable, find the correct answer.4269.1 ÷ 4.2 = 1016.5
A. Unreasonable, should be 10,165 B. Unreasonable, should be 10.165 C. Reasonable D. Unreasonable, should be 101.65
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. 600, 9600 C. 600, 38 D. 1200, 38
Provide an appropriate response.Perform the indicated operation, rationalize denominator, and simplify if possible: 
Fill in the blank(s) with the appropriate word(s).
Solve the problem.Let A = 
and B = 
. Find 2A + B.
A. 
B. 
C. 
D. 