[x+y>=1],[7x+9y<=63],[x<=6],[y<=5],[x,y>=0]

Solve fir x and y: [5x-4y+8=0],[7x+6y-9=0]

Solve, using cross - multiplication : x - y + 2 = 0 7x + 9y = 130

For f(x ,y)= 7x +9y , what is the value of f(x,y) when y =((5)/(x))^(2) and x=3 ?

One diagonal of a square is along the line 8x-15 y=0 and one of its vertex is (1, 2). Then the equations of the sides of the square passing through this vertex are (a)23 x+7y=9,7x+23 y=53 (b)23 x-7y+9=0,7x+23 y+53=0 (c)23 x-7y-9=0,7x+23 y-53=0 (d)none of these

One diagonal of a square is along the line 8x-15 y=0 and one of its vertex is (1, 2). Then the equations of the sides of the square passing through this vertex are a. 23 x+7y=9,7x+23 y=53 b. 23 x-7y+9=0,7x+23 y+53=0 c. 23 x-7y-9=0,7x+23 y-53=0 d.none of these

One diagonal of a square is along the line 8x-15 y=0 and one of its vertex is (1, 2). Then the equations of the sides of the square passing through this vertex are (a)23 x+7y=9,7x+23 y=53 (b)23 x-7y+9=0,7x+23 y+53=0 (c)23 x-7y-9=0,7x+23 y-53=0 (d)none of these

One diagonal of a square is along the line 8x-15 y=0 and one of its vertex is (1, 2). Then the equations of the sides of the square passing through this vertex are (A) 23 x+7y=9,7x+23 y=53 (B) 23 x-7y+9=0,7x+23 y+53=0 (C) 23 x-7y-9=0,7x+23 y-53=0 (D) none of these

The distance between the parallel lines 4x+3y+7=0, 12x+9y+1=0 is

Area of the equilateral triangle inscribed in the circle x^(2) + y^(2) - 7x + 9y + 5 = 0 , is …………