Hey there!
8x + 4y - 2x + 6y - 3
COMBINE the LIKE TERMS
= (8x - 2x) + (4y + 6y) - (3)
= 8x - 2x + 4y + 6y - 3
= 6x + 10y - 3
Therefore, your answer is:
6x + 10y - 3 (Optipn A.)
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
I hope this helps you out
Since the values are equally likely and equally spaced, their mean is the middle one.
the mean is 1/5
The variance is the average of the square of the deviations from the mean.
σ² = (1/3)((-1/10)² + 0² + (1/10)²) = 2/300
the variance is 2/300
