Which polynomial expression in factored form has 2 as a leading coefficient with 0, −1, 6, and −4 as zeros? A) 2(x − 1)(x + 6)(x − 4)
B) 2(x + 1)(x − 6)(x + 4)
C) 2x(x − 1)(x + 6)(x − 4)
D) 2x(x + 1)(x − 6)(x + 4)

What is the value of x? enter your answer in the box. photo attached.

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =

How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?