Answer: No, we cannot find for its length as we can see that variables got cancelled so, we are not able to find any value for 'y'.
Step-by-step explanation:
Since we have given that
Let length of room's floor be y
Let width of a room's floor be y-5
Perimeter of room's floor be 4y+1
As we know the formula for " Perimeter of rectangle ":
No, we cannot find for its length as we can see that variables got cancelled so, we are not able to find any value for 'y'.
Answer:
The answer is D
Step-by-step explanation:
Because you multiply everything by 2
Students who receive a grade of at least a C must have a minimum score of 50.38.
<h3>Calculation of the minimum score</h3>
We may assume that the cut-off will be below 67.66 % because that percentage is more than 50%.
To get the value of 67.66 - 50 = 17.66, we must search in a regular normal table.
Hence, A z value of 0.458 will cause that value to occur.
Next, increase the standard deviation of 9 by 0.458.
The result is 4.122.
This indicates that the threshold for a student earning a C or higher is the mean minus 4.122.
So, the final result is 54.50-4.122 = 50.38.
Learn more about standard deviation here:
brainly.com/question/13905583
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