Answer:
The average GPA for the 100 students is a sample statistic.
To find the width of the rectangular screen, we can use the formula for the area of a rectangle:
length x width = area
We are given that the viewable area is 9,800 square meters, so:
length x width = 9,800
We are also given that the length is 5 meters more than 6 times the width, so:
length = 6w + 5
Substituting this into the area formula:
(6w + 5) x w = 9,800
Expanding and rearranging:
6w^2 + 5w - 9,800 = 0
Using the quadratic formula:
w = (-5 ± sqrt(5^2 - 4(6)(-9800))) / (2(6))
w ≈ 32.9 meters (to two decimal places)
Therefore, the width of the rectangular screen is approximately 32.9 meters.
Explanation: