A rocket is launched straight up from the side of a cliff 40m high. If the initial velocity (v) is 30 m/sec and the height (H) is given by the formula = −16² + + ℎ, find the time at which the rocket will hit the ground. * HELP PLS IM AT A TESTTT
A. 2.78sec
B. -0.90sec
C. 3.1sec
D.-0.6sec

The table shows the balance of a money market account over time. write a function that represents the balance y (in dollars) after t years.

Do,h = (7, 9) (14, 18) the scale factor is

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.