Simplify. Assume all variables represent nonnegative values.

A. 4a
B. 4a2
C. 4
D. 256a 


Answer: A

Mathematics

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Simplify the expression by rationalizing the denominator.

A.
B.
C.
D.

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Multiply. Simplify, if necessary. ? 

A. - 
B.
C. - 3
D. - 

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Select the graph of the function:

a.
b.
c.
d.

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The table shown was generated by a graphics calculator. The expression y1 represents f(x).All the points lie on a straight line. What is the slope of the line?

A. - 
B. -2
C. -3
D. 2

Mathematics