Answer:
5 seconds
Step-by-step explanation:
H= -16t2 + 400
Hit ground
H=0
0 = -16t2 + 400
0 = -16 ( t2 - 25)
-16
t2 -25 = 0
(t + 5)(t - 5) = 0
t + 5 = 0
- 5 -5
t = -5
t - 5 = 0
+ 5 +5
t = -5
t = 5
5 seconds to hit the ground
Given:
A line has a slope = -9
The line passing through the point (-4 , -2)
the general form of the equation of the line in point - slope form is :
Where: m is the slope, and ( h,k) is the point
So,
So, the equation of the line will be:
The answer is option C. y + 2 = -9 ( x + 4 )
1/2t=3/4
I believe you need to find t here
So I would do 3/4/1/2 which would be 3/4*2/1
3/4*2/1= 6/4
6/4=3/2
Answer:
y= 69x + 356
Step-by-step explanation:
y= 69x + 356
It goes 69 feet per second hence the 69x and it starts 356 feet in the air
"Dimensional analysis" is the primary way to make conversions between any units. Some have trouble because they fail to make it an important point to label units, but labeling units correctly makes tracking and making any conversion very simple...The process and thinking is that you want to cancel out units that you don't need in the solutions...
(198ft/s)(12in/ft)(2.54cm/in)(m/100cm)=60.3504m/s (and that is exact)
d=5s(60.3504m/s)=301.752m
ugh...assume that a meter equals 3.3 feet and do not round your answers???
really? These people are idiots when there is an exact conversion. What is the point of not rounding when you are using a horrible approximation? :D
(198ft/s)(m/3.3ft)=60m/s
d=5s(60m/s)=300m
