Answer:
5y = 5
Step-by-step explanation:
When the second equation is multiplied by -2, it becomes ...
-2(x -2y) = -2(-1)
-2x +4y = 2
Adding this to the first equation gives ...
(2x +y) +(-2x +4y) = (3) +(2)
2x +y -2x +4y = 5 . . . . . . . . . eliminate parentheses
5y = 5 . . . . . . . . . . . . . . . . . . .collect terms
Its basically a factor of the quotient
The relationship between variance and standard deviation
is simply:
s = standard deviation
s^2 = variance
s = sqrt (s^2)
Therefore calculating for s:
s = sqrt (144)
s = 12
<span>So we get the standard deviation is simply 12 scores.</span>
The 3rd one. As long as the line has something to do with the given poin
You would need to add 36 to both sides to complete the square.
This is because you take half of the x term and then square it.