A football team scored fewer than 16 points in Saturday’s game. Than wants to write an inequality for the number of points. He u
2 answers:
Answer:
C. the number of points scored by the team
Step-by-step explanation:
A football team scored fewer than 16 points in Saturday’s game.
Than wants to write an inequality for the number of points.
He uses the variable 's' in his inequality.
The inequality must be =
This means the scores points are less than 16.
Therefore, the correct answer is - C. the number of points scored by the team
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Answer:
a) No. t < 0 is not part of the useful domain of the function
b) 2.0 seconds
Step-by-step explanation:
a) A graph of the function is shown below. It shows t-intercepts at t=-0.25 and t=2.0. We presume that t is measured forward from some event such as the ball being thrown or hit. The model's predicted ball location has no meaning prior to that event, when values of t are negative.
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b) It is convenient to use a graphing calculator to find the t-intercepts. Or, the equation can be solved for h=0 any of several ways algebraically. One is by factoring.
h = 0 = -16t² +28t +8 . . . . . . . . . . . . the ball hits the ground when h = 0
0 = -4(4t² -7t -2) = -4(4t +1)(t -2)
This has t-intercepts where the factors are zero, at t=-1/4 and t=2.
The ball will hit the ground after 2 seconds.
