Answer:
x = 0 and x = 1 
Step-by-step explanation:
Given that,
A football is kicked into the air. The height of the football can be modeled by the equation :

Where
h is the height reached by the ball after x seconds
When it touches the ground, h = 0
So,

So, it will touch the ground at x = 0 and x = 1 seconds.
 
        
             
        
        
        
The value from the set {3,8,9,14} makes the equation 2n - 5 = 11 true is n = 8
<h3>What is an 
equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
Given the equation:
2n - 5 = 11
When n = 3:
2(3) - 5 = 1 ≠ 11
When n = 8:
2(8) - 5 = 11
When n = 9:
2(9) - 5 = 13
When n = 14:
2(14) - 5 = 23
The value from the set {3,8,9,14} makes the equation 2n - 5 = 11 true is n = 8
Find out more on equation at: brainly.com/question/2972832
#SPJ1
 
        
             
        
        
        
Answer:
Step-by-step explanation:
they want to know the high and low quiz scores... that's all
 
        
             
        
        
        
Line the decimals up and add like you normally would.But don't forget to put your decimal in your answer