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jetblackcap
02.06.2021 •
Mathematics
Stephen kicked a ball inside. The equation that represents the height h in feet of the ball after being kicked and elapsed amount of time t in seconds
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Ответ:
The maximum height of the ball is: 14.0625ft
Step-by-step explanation:
The missing information is:
Required
The maximum height the ball attained
First, we calculate the time to reach the maximum height.
For a function:![h(t) = at^2 + bt + c](/tpl/images/1358/7061/aeed1.png)
The maximum is:![t = \frac{-b}{2a}](/tpl/images/1358/7061/7cef0.png)
So, the maximum of
is:
Where
So:
The maximum height is then calculated as:
Ответ:
The comparisons are as follows:
Extremes:
Let the upper box plot be for class 1 and the second one be for class 2
The lowest value in class 1 is 53 and for class 2 is 56 while the highest value for class 1 is 89 and for class 2 is 96.
Ranges:
The range for class 1 is: 89-53 = 36
The range for class 2 is: 96-56 = 40
Class 2 has a range larger than class 1
Quartiles:
For class 1:
First quartile: 62
Third quartile: 86
IQR: 86-62 = 24
For class 2:
First quartile: 62
Third quartile: 89
IQR: 86-62 = 27
The IQR for class 2 is larger than IQR of class 1.
Medians:
The median for class one is: 80 and for class 2 is 74
Hence we can conclude that the scores of class 2 are more spread than the scores of class 1 ..