Simplify. If an expression does not represent a real number, state this. 

A. not a real number
B. -6.4
C. 2
D. -2


Answer: D

Mathematics

You might also like to view...

Find the standard-form equation of the hyperbola centered at the origin which satisfies the given conditions.A hyperbola having a focus at (0, - 2) and corresponding directrix  .

A.  -  = 1
B.  -  = 1
C.  -  = 1
D.  -  = 1

Mathematics

Solve the problem.The dosage instructions on a prescription call for a patient to take 1 tablets of a 20-milligram medication four times a day for 14 days. How many tablets will the patient take in the 14-day period? 

A. 315 tablets B. 84 tablets C. 21 tablets D. 56 tablets

Mathematics

Determine if the given ordered pair is a solution of the equation.x + y = 15; (8, 7)

A. Not a solution B. A solution

Mathematics

Perform the exponentiation. 2

A.
B.  
C. - 
D. - 

Mathematics