Find the intervals on which the function is increasing and the intervals on which the function is decreasing.f(x) = x2 - 9x + 12

A. Increasing on ; decreasing on 
B. Increasing on ; decreasing on 
C. Increasing on ; decreasing on 
D. Increasing on ; decreasing on 


Answer: B

Mathematics

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Solve the equation by first clearing the decimals.0.86x + 0.9(18 - x) = 15.84

A. {9} B. {-9} C. {0.09} D. {-0.09}

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Find the area of the triangle. If necessary, round the answer to two decimal places. 

A. 2.95 B. 2.08 C. 0.52 D. 1.04

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Provide an appropriate response.Can the sum be simplified without first simplifying the individual radical expressions?6 + 3

A. No B. Yes

Mathematics