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

A.  - i
B.  - i
C.  + i
D.  - i


Answer: C

Mathematics

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Solve the equation.  =  

A. 15
B.
C. No solution
D.

Mathematics

Simplify the fraction, if possible.

A. undefined
B. -25
C.
D. 25

Mathematics

Use the check register find the ending balance.Christopher Zachar had a balance of  in his checking account before writing three checks and making a deposit. On  he wrote check  to Quick Clean for  and check  to Mick's Hardware for 

src="https://sciemce.com/media/4/ppg__10622191728__f1q2g6.jpg" alt="" style="vertical-align: -4.0px;" /> Then on  he made a deposit of  and wrote check  to Cary's Plumbing for  Record the checks and deposit in Christopher's check register, and then find the ending balance.

A. $6077.14
B. $4834.06
C. $5465.86
D. $5311.21

Mathematics

Solve the problem.Two friends decide to meet in Chicago to attend a Cub's baseball game. Rob travels  in the same time that Carl travels  Rob's trip uses more interstate highways and he can average  more than Carl. What is Rob's average speed?

A. 61 mph B. 58 mph C. 57 mph D. 65 mph

Mathematics