For this case we have the following kinematic equation that models the problem:
h (t) = (1/2) * (- 9.8) * t ^ 2 + 12 * t + 2
Rewriting we have:
h (t) = -4.9 * t ^ 2 + 12 * t + 2
When the ball hits the ground we have:
-4.9 * t ^ 2 + 12 * t + 2 = 0
Solving the polynomial we have:
t1 = -0.16
t2 = 2.61
We ignore the negative root because it is time.
Answer:
It will take the ball to hit the ground about:
t = 2.61 sec
Answer:8 candy bars because 21-5=16/2=8 candy bars.
Step-by-step explanation:
2x+50 + 3x= 90 degrees
5x +50 = 90
5x =40
x=8
Angle1= 2(8) +50= 66
Angle2= 3(8)=24
66+24+90= 180
Answer:
Step-by-step explanation:
<u>Given formula:</u>
<u>Solve for h:</u>
- 2wh + 2lh = S - 2lw
- h(2w + 2l) = S - 2lw
- h = (S - 2lw)/(2w + 2l)
Answer:
3x=$20
Step-by-step explanation:
well first you divide 3x/3=$20/3
3 can go into 20 6 times that would 18 and then u would have a remainder of 2 dollars and 3 cant go into 2 so it would be .67 so x=6.67