Combine the following, if possible. +  +  + 

A. 11 +  +  
B. 11 + 9
C.  +  + 9
D. 73 + 9


Answer: B

Mathematics

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Graph the function. Specify the intervals over which the function is increasing and the intervals where it is decreasing.y = -x2/5

A. Increasing -? < x < 0
Decreasing 0 < x < ?

B. Decreasing -? < x ? 0
Increasing 0 ? x < ?

C. Increasing -? < x < ?

D. Decreasing -? < x < ?

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 Find all values of ? in [0°, 360°) that satisfy the equation.cot ? = 1

A. {45°, 315°} B. {135°, 225°} C. {225°, 315°} D. {45°, 225°}

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Simplify.( + 3)( - 3)

A. 7 - 2
B. 16
C. 4
D. -2

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Determine whether the graph is the graph of a function.

A. Yes B. No

Mathematics