Answer:
726
Step-by-step explanation:
See step-by-step in photo attached.
To find the mean, you have to add all the numbers and divide by how many numbers there are in total.
The mean is

The mean of those seven numbers is
54.29
(see attachment)
the diameter is the diaagonal of the squar which also makes a right triangle where the diagnal is the hypotnuse
and since it is a square
the legs are equal measure
a^2+b^2=c^2
where legs legnth a and b an hypotnuse legnth c
c=7
a=b
a^2+a^2=7^2
2a^2=49
divide by 2 both sides
a^2=19.5
sqrt both sides
a=√19.5
the legnth of 1 side is √19.5 max or aprox 4.41588 inches
Find values of x that make the equation equal to 0
x - 3 = 0
x = 3
x + 4 = 0
x = -4
ANSWER: 3, -4