A rocket is shot from an underground bunker. The height of the rocket after t seconds is given by y= -16t^2 + 176t -384 ( measured in feet relative to the surface). Determine how long after the rocket is launched that it will emerge from the ground, and determine how much longer it will be for the rocket to hit the ground?

Which mathematical statements are true? 1) if 3 is an odd number, then 3 times 3 is an even number. 2) if 6 is less than 7, then 4 is greater than 7. 3) six is divisible by 3, and 10 is a multiple of 2. 4) the average of the data is greater than the largest value in the data, or it’s less than the largest value in the data. 5) the slope of a linear graph is its rate of change, and the graph’s y-intercept is the initial value. 6) if an equilateral triangle has equal angles, then all its angles will measure 45°.

If the discriminant if a quadratic equation is 4 which statement describes the roots?

50 points~ ! i have to turn this in tomarrow