I. ` 8x+y = 10`
II.` 4x+2y = 13`

Find the values of (x+y ) , if (i) 3x + 4y = 11 , 4x + 3y = 10 (ii) 5x - 2y = 4 , x + 8y = 26

Find the values of (x-y) , if (i) 3x + 4y = 11 , 4x + 3y = 10 (ii) 3x + 2y = 8 , 2x + 3y = 7

I. 4x^(2) = 25" " II. 2y^(2) - 13y + 21 = 0

Solve for x and y , 8x + 5y - 11 = 0 3x - 4y - 10 = 0

8x + y + 2z = 4x + 2y + z = 1x + y + z = 2

In a bivariate distribution the regression equation of y on x is 8x – 10y + 66 = 0. If barx= 13 , find bary

I. x^(2)/2 + x - 1/2 = 1 II. 3y^(2) - 10y + 8 = y^(2) + 2y - 10

I. x^(2) + 4x+4 = 0 II. y^(2) - 8y + 16 = 0