Answer:
I think it would be a 1.40 decrease
Step-by-step explanation:
Check the pictures below.
if we knew the roots/solutions of the equation, we can set h(s) = 0 and solve for "s" to find out how many seconds is it when the height is 0.
if you notice in the first picture, when f(x) = 0, is when the parabola hits a root/solution or the ground, for David he'll be hitting the water surface, and the equation that has both of those roots/solutions conspicuous is
h(s) = -4.9(s - 2)(s + 1).
The formula for the area of a triangle is Area=.5(b)(h)
So fill in what you know:
120=.5b*15
Then solve for b.
120=7.5b
b=16
Im pretty sure it’s going to be a, because when you divide by the -6 you’re supposed to switch the sign
Answer:
7 & 8
Step-by-step explanation:
= 7.7459666924148337703585307995648
Therefore, it lies between the whole numbers 7 & 8.
Hope this helps :)