So hmmm check the graph below
now.. to find the vertex of any quadratic

so... how long did it take? well, it took

what was the highest point? well, it was

when did he hit the water? well, at y = 0
that is

solve for "t"
Answer:
15.1467 I think if that's an answer.
I'm assuming this is a Pythagorean theorem problem. If so the answer would be √125
18%=$16.91
1%=$16.91÷18
=$0.93944(3.s.f)
100%=$0.93944x100
=$93.94(2.d.p)
Answer:
x=3
Step-by-step explanation:
BC=6
cos(60)=×÷6
×=3