Answer:
The time the ball will hit the ground is 1.4 seconds
Step-by-step explanation:
Preston has 19 games and Horatio has 30 games.
You can set this as a system of equations, set Preston as x and Horatio as y.
Both of the amounts add up to 49, so we can get the equation:
x+y=49
Since Horatio has 11 more games, we can get the equation:
y-x=11
If we add the x to the other side, the second equation becomes:
y=x+11
We can plug in the second equation into the first and get the equation:
x+11+x=49
with a little simplification, we get x (Preston) is equal to 19. If we add 11 to it, we get Horatio's amount: 30
Given:
The height of an object, f(x), after x seconds is
To find:
The time taken be object to hit the ground.
Solution:
We have,
The object will hit the ground if the height is 0, i.e., f(x)=0.
Divide both sides by 2.
Taking square root on both sides.
Time cannot be negative. So, x=4.
Therefore, the object will hit the ground after 4 seconds.
Answer:A perfect square is a number which is generated by multiplying two equal integers by each other. For example, number 9 is a perfect square because it can be expressed as a product two equal integers being: 9 = 3 x 3.
Step-by-step explanation:
