The ball describes a parabola, as you can see in the attached picture. So, the point where the ball strike the ground is the point where the parabola meets the x axis. In fact, the x-axis is the set of points where y=0, which means that the ball has height 0 or -again- it hits the ground.
So, we have to set y=0 in our equation and look for the positive solution. We have
And the positive solution is
So that's the distance from the child where the ball strikes the ground.
Answer:
You're not stupid, the answer is not there. *shrug*
Brian drank 16.72 L of water.
Step-by-step explanation:
Let's set up a ratio that represents the problem:
Liters : Gallon
3.8 : 1
To find how many liters Brian drank, multiply by 4.4 on both sides of the ratio:
Liters : Gallon
3.8 : 1
x4.4 x4.4
16.72 : 4.4
Therefore, Brian drank 16.72 L of water.
Answer: 114
Step-by-step explanation:
680/17 is 40
40+40+17+17 is 114.
- Step-by-step explanation:
12g +21 and3(4g +7)
12g + 21 and( 3×4g=12g+3×7=21)
12g+21 and 12g+21,,
