Arock is thrown from the top of a building which measures 48 foot high. the graph shows the height, y, of the rock from the ground after x seconds. on which interval is the rock's height always increasing?

a)
x > 0

b)
0 < x < 2.5

c)
0 < x < 5.5

d)
2.5 < x < 5.5

Acoin is tossed twice. let e e be the event "the first toss shows heads" and f f the event "the second toss shows heads". (a) are the events e e and f f independent? input yes or no here: yes (b) find the probability of showing heads on both toss. input your answer here: preview

Talia grouped the terms and factored out the gcf of the groups of the polynomial 15x2 – 3x – 20x + 4. her work is shown below. (15x2 – 3x) + (–20x + 4) 3x(5x – 1) + 4(–5x + 1) talia noticed that she does not have a common factor. what should she do?

What is the answer to this equation? and if you can, find a way to show your work.