Since we know that the area is 100 and we are dealing with a square, that means that all sides are equal. We know that the sides are all 10 because 10*10= 100.
To find the perimeter, we add up all the sides: 10+10+10+10 = 40m
Answer: 2.508
Step-by-step explanation:
As per give , we have
Sample size : n= 23
Degree of freedom : df= n-1=22
significance level : 
Since , the sample size is small (n<30) and population standard deviation is unknown.
So , we use t-test.
For confidence interval , we find two-tailed test value.
Critical t-value : 
[using students's t-critical value table]
Hence, the critical value that should be used in constructing the confidence interval = 2.508
Answer:
You are subtracting because your going left and how I remember this is latitude flatitude it weird but thats how I remember.
Y=4x+6
y=-5x-21
4x+6=-5x-21
add both sides by 5x
also subtract both sides by 6
9x=-27
x=-3
plu x=-3 in y=6+4x
y=6-12
y=-6
You cannot eliminate x and end up with two different equations.
5x+3y=9.. B
2x-4=40...A
Solve A for x.
2x - 4 = 40
2x = 40 + 4
2x = 44
x = 44/2
x = 22
The only thing I can think of doing is to plug 22 into B.
5(22) + 2y = 9
110 + 2y = 9...This leads to an answer for y.
No two NEW EQUATIONS is possible.
2y = 9 - 110
2y = -101
y = -101/2
Check your question again.
