If the ball hit the ground it means that its height is equal to 0. In order to find the time after the ball <span>will hit the ground, we need to find the solution of the equation h(x)=0 which is different to 0.
-4.9x^2+21.3x=0
x(-4.9x+21.3)=0
-4.9x+21.3=0
x=21.3/4.9 = 4.3469 seconds</span>
Hullo!
Your answer is C! Or 78 cm!!
Hopefully this helps! :D
No it is not because the sevens are in the same place in both numbers
Bar chart definition: a diagram in which the numerical values of variables are represented by the height or length of lines or rectangles of equal width.
Answer:
x = 6
Step-by-step explanation:
3 / 6 = 18 / 36
3 × 6 = 18
6 x 6 = 36