What is the value of the discriminant in the quadratic function 2x^2 − 10x − 5 = 0? Select one:
A. 2.61
B. 11.83
C. 45
D. 140

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827

Let event a = you roll an even number on the first cube.let event b = you roll a 6 on the second cube.are the events independent or dependent? why?

The angle of elevation from point a to the top of a cliff is 38 degrees . if point a is 80 feet from the base of the cliff , how high is the cliff ?