!NO LINKS! A javelin thrower releases a javelin 6 ft from the ground with an initial vertical velocity of 18 ft/s.

Which equation can be used to find the time, t, it takes for the javelin to reach the ground?

A) –16t^2 + 18t + 6 = 0

B) –16t^2 + 18t = 0

C) –16t^2 + 6 = 0

D) –16t^2 + 6t + 18 = 0

Aman steps out of a plane at a height of 4,000m above the ground falls 2,000m very quickly and then opens his parachute and slowly falls the remaining 2000m to the ground what height above the ground would be the best choice for a reference point

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?

Find the zeros of each function. f(x) = 6x^2 - 7x - 20