1.

6. Ifx + y = 10 and xy = 16. Find the value of: x2 - xy + y27. Find the perpendicular distance of the point P(7.5) from the y-axis.8.If the point (3.4) lies on the graph of the equation 3y = ax + 7, find the value of a​

Answer»

6.

2(x + y) - xy  = 2 \times 10 - 16 = 4



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