The graph shows the function
y = sin(x) + 6
y = cos(x) – 6
y = sin(x) – 6
y = cos(x) + 6

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.

The height above the ground (in feet) of a ball dropped from the top of a 30-foot-tall building after t seconds is given by the polynomial: ? 16t^2+30 what is the height of the ball after 1/2 second?

Random variables x poisson~ ( a) ,y poisson ~ ( a) . x and y are independent. if 2 1, 2 1. u =2x+ y-1, v=2x- y +1. find: ) cov (u ,v ).