The resistance force for this ideal pulley system is 1,000 N. What is the F? 2,000N
1000N
500N
333 N
Help!!

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0

7+(3n++8) what is the answer to this?

An incoming airplane is x miles due north from the control tower at an airport. a second incoming airplane is y miles due east of the same control tower. the shortest distance between the two airplanes is z miles. which of the following functions would best model the situation above?