The function y = –16t2 + 486 models the height y in feet of a stone t seconds after it is dropped from the edge of a vertical cl
iff. How long will it take the stone to hit the ground? Round to the nearest hundredth of a second.
1 answer:
Since we are looking for the time it takes for the stone to hit the ground, then it means that we set the height y to 0 ft.
y = -16t² + 486
0 = -16t² + 486
16t² = 486
t² = 30.375
t = 5.51 seconds
You might be interested in
What is the formula for calculating the volume of a cube?
V = s x s x s where s = the length of a side
V = .5 x.5 x.5 = .125
It’s a flip of the graph on the x-axis
Therefore f(x) = - x^2 (NOT IN PARENTHESIS that would be a reflection on the y axis)
It’s a shift 4 y values down therefore
g(x) = - x^2 - 4
62/949+ 297i/949 is the answer to this problem
Answer: a) ruler/protractor
b) distance formula (SSS)
c) slope/ distance formula (SAS)
Frac. = 7/200
Dec. = 0.035
