A set of final examination grades in a calculus course was found to be normally distributed with a mean of 69 and a standard dev
iation of 9. What percentage of students scored between 65 and 89?
1 answer:
You might be interested in
Answer:
The length of the rectangular field is 12 ft and the width is 5 ft.
Step-by-step explanation:
The area of a rectangle is:
The area of a rectangular field is, <em>A</em> = 60 ft.
The length of the field is:
l = w + 7
Compute the width of the field as follows:
Factorize the last equation by splitting the middle term as follows:
Now, since the width of rectangular field cannot be negative, the width is 5 ft.
Compute the length as follows:
l = w + 7
= 5 + 7
= 12
The length of the rectangular field is 12 ft.
Explanation is in a file
bit.ly/3gVQKw3