Hi, all help is much appreciated. (Nod)
for this question, I've been trying to figure it out.
h = -10 cos (πt/15) + 11
h = height (m)
t = time in seconds
if t = 10
i know one way is to plot the graph and find the point but my graph isn't accurate enough and i don't have the proper calculator.
how do i find h.