Simplify by rationalizing the denominator. Write your answer in a + bi form.

A.  + i
B.  - i
C.  + i
D.  - i


Answer: B

Mathematics

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Which of the following is not equivalent to:  ? ? ?

A. 1.5× 10?12 B. ?1,500,000,000 C. ?1.5?× 109 D. 15 ?× 108 E. ?1.5 × 106 × 103

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Solve the absolute value inequality. Write your answer in interval notation.|8k + 3| ? 6

A.  
B.
C.  ?  
D.

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Evaluate the expression for the given values of the variables. for x = , y = - 

A. - 
B. - 
C. - 
D. - 

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Factor the trinomial, or state that the trinomial is prime.x2 + 11x + 18

A. (x - 9)(x + 2) B. prime C. (x + 9)(x + 2) D. (x - 9)(x + 1)

Mathematics