A relief organization flew over a village and dropped a package of food and medicine. The function h = –16t2 + 1000 gives the package’s height h above the ground (in feet) after t seconds.
How many seconds does it take for the package to hit the ground?
What height does the plane drop the packages from?

Kylie explained that (-4x+9)^2 will result in a difference of squares because (-4x+9)^2 (-4x+9)^2 =(-4x)^2+(9)^2=16x^2+81

An angle that measures between 90 and 180° is called a(,

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?