please, someone, help, I have only 1 hour to complete it. please answer before I run out of time and btw its science actually no
t math
1 answer:
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Check the attachment.
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Answer:
65
Step-by-step explanation:
Here is the full question :
Asher owns a square plot of land. He knows that the area of the plot is between 4200 and 4300 square meters. Which of the following is a possible value of the side length of the plot of land? 45, 55, 65, 75
The formula of the area of a square is
Given the information that the area is between 4200 and 4300 square meters, trial and error would be used to determine which of the options is correct
45^2 = 2025
55^2 = 3025
65^2 = 4225
75^2 = 5625
it can be seen that it is only 65 that is between between 4200 and 4300 square meters.
We have been given that the standard deviation of a group of 20 scores is 15 and we are asked to find variance.
Since we know variance is square of standard deviation. In order to find out the variance of the given data we have to take the square of 15.
Therefore, our variance is 225.