Answer:
y = x^2 - 4x - 6.
Step-by-step explanation:
The roots are 2 + √10 and 2 - √10, so in factor form we have:
(x - (2 + √10))(x - (2 - √10))
= ( x - 2 - √10)(x - 2 + √10)
= x^2 - 2x + √10x - 2x + 4 - 2√10 - √10x + 2√10 - √100
= x^2 -4x + 4 - 10
= x^2 - 4x - 6.
Add up all the numbers & divide by the number of numbers. That should give you the mean.
I hope you understand....
Answer:±17.6635217326557
Step-by-step explanation:
2/3+(-1/3)
2/3-1/3
1/3
Your answer is 1/3
