A buoy marks a channel for boat navigation and bobs up and down with the motion of the waves. In the given function, (f)t represents height of the buoy above sea level, in feet, after t seconds. f(t)=2cos(pi/4*t) On the graph, plot the points where the height, f(t), is at a minimum.

the answer is 0.3175 hope that you ^w^

also you might actually want to put this picture up if you want people to solve it luckily i remember this question

these sign is used to tell weather the number is greater or less than the number   <   or >     but this sign means its equal =    

hope this you and

step-by-step explanation:

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11 -1> 1 -1+ a

-12 > a

i think it’s c i believe