Arocket is launched vertically from the ground with an initial velocity of 64 ft/sec. (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 the coordinate plane.

Define the type of sequence below. -2,0,2,4,6 a. both arithmetic and geometric b. arithmetic c. neither arithmetic nor geometric d. geometric

What ordered pair represents this equation? 3x-y=8 and x+y=2

The discrete random variables x and y take integer values with joint probability distribution given by f (x,y) = a(y−x+1) 0 ≤ x ≤ y ≤ 2 or =0 otherwise, where a is a constant. 1 tabulate the distribution and show that a = 0.1.2 find the marginal distributions of x and y. 3 calculate cov(x,y).4 state, giving a reason, whether x and y are independent. 5 calculate e(y|x = 1).