Find the discriminant. Then use it to determine the number and type of solutions to the quadratic equation. Do not solve the equation.6x2 - 4x + 5 = 0
A. -104; one real solution
B. 136; two real solutions
C. -104; two non-real solutions
D. -104; one non-real solution
Answer: C
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Evaluate. Assume that all variables represent positive numbers. - 
A. 36
B. -36
C. - 
D. 
Two cars leave Pima Community College traveling in opposite directions. One car travels at 54 mph and the other at 38 mph. In how many hours will they be 184 miles apart? ? Please enter your answer as a number without the units.
Fill in the blank(s) with the appropriate word(s).
Solve the system using the inverse of the coefficient matrix of the equivalent matrix equation.2x + 8y + 6z = 204x + 2y - 2z = -23x - y + z = 11
A. (2, 1, 6) B. (2, -1, 4) C. (-1, 2, 1) D. No solution
Use the fundamental identities and appropriate algebraic operations to simplify the expression.
- tan x
A. tan x B. tan2 x C. csc x D. cot x