Answer:
10 seconds
Step-by-step explanation:
The function is

Initial height = 1600 ft
t = Time taken




So, time taken by the hailstone to reach the ground is
.
Answer: d
Step-by-step explanation:
i think that's the answer sorry if i'm wrong
Y-y1=m(x-x1)
that is equaton of a line passing through the point (x1,y1) and having a slope of m
find slope betweeen given points
slope between (x1,y1) and (x2,y2) is (y2-y1)/(x2-x1)
given (2,2) and (4,8)
slope=(8-2)/(4-2)=6/2=3
a point is (2,2) or (4,8)
slope is m=3
so the equation is
y-2=3(x-2) or
y-8=3(x-4)
the answer is A