Which expressions are prime polynomials? x^2 - 9x + 3
x^4 + 3y^2x - 1
x^3 - 512y^3
x^2 - 3x - 10
9y - 4y^2 + 12y^3​

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 =

Jude is making cement for a driveway. the instructions show the amount of each ingredient to make 1 batch of cement. complete each statement to adjust the ingredients for each new situation if jude uses these instructions.

What 8/12+8/11 in another way than and improper fraction