Arocket is launched vertically from the ground with an initial velocity of 64 ft/s (a) write a quadratic function, h(t), that shows the height, in feet, of the rocket t seconds after it was launched (b) graph h(t) on a coordinate plane (c) use your graph from part b to determine the rockets maximum height, the amount of time it took to reach its maximum height, and the amount of time it was in the air. ! will give brainiest!

x=-5t^2+19t

step-by-step explanation:

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x