Simplify. Remember that we have assumed that radicands do not represent the square of a negative number.

A. (z - 6)2
B.  - 6
C. z - 6
D. z - 

Answer: C

Mathematics

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A.  +  = 1
B.  + y2 = 1
C.  +  = 1
D.  +  = 1

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A. x = ±4 B. x = -8 C. x = -4 D. The equation is a contradiction.

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Solve the problem.Two angles of a triangle are 10° and 30°. What is the measure of the third angle?

A. 140° B. 320° C. 50° D. 40°

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Factor completely.x2 + 3x - 40

A. (x - 8)(x + 5) B. (x + 8)(x - 5) C. (x - 8)(x + 1) D. Prime

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Mathematics