We want to know when h is equal to 0. This represents when the height is 0 and thus, hits the ground.
Then, 0 = 70t - 5t²
0 = 5t² - 70t
0 = 5t(t - 14)
t = 0 and 14.
So, at t = 0, the initial height is 0 and it hits the ground again after 14 seconds.
Answer:
1/4y
Step-by-step explanation:
First change the first equation in to slope-intercept form
y=mx+b<-----slope intercept form
m=slope
b=y-intercept
4y=-x+8
y=1/4x+2<----final slope-intercept form
now, you know there is a point that is (0,2), the y-intercept, so now you calculate the slope.
y2-y2/x2-x1<------slope formula
3-2/0-3
1/-3
-1/3<---slope
so your final equation is
y=(-1/3)x+2
hope this helps! :)
The answer is that X is equal to 4
Answer:
Dodecagon (12 sides)
Step-by-step explanation:
PLS GIVE BRAINLIEST