Subtract.Subtract -7 from 2.

A. -5
B. -9
C. 5
D. 9


Answer: D

Mathematics

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Multiply and simplify. Assume all variables represent nonnegative real numbers. Write your answer in radical notation. 

A.
B.
C. 2ab 
D.

Mathematics

Factor the expression completely.72x2 - 2

A. 2(6x - 1)(6x + 1) B. 2(6x + 1)2 C. (12x - 2)(6x + 1) D. (6x - 1)(12x + 2)

Mathematics

Does the pair of triangles appear to be similar? Write similar or not similar.

A. Similar B. Not similar

Mathematics

Solve for the requested variable.y varies directly as x and inversely as the square root of w, and y = 42 when  and . Find y when  and 

A. y = 16
B. y = 48
C. y = 32
D. y = 12

Mathematics