The initial count of bacteria is `x` and it becomes `y` times every day. The total count of backteria after one week is `7\ x y` (b) `x+7y` (c) `x y^7` (d) `x y^6`

The initial count of bacteria is x and it becomes y times every day. The total count of backteria after one week is (a) 7\ x y (b) x+7y (c) x y^7 (d) x y^6

The initial count of bacteria is x and it becomes y xx every day.The total count of backteria after one week is 7xy (b) x+7y (c) xy^(7)(d)xy^(6)

The orthocentre of the triangle formed by the lines x - 7y + 6 = 0, 2x - 5y - 6 = 0 and 7x + y - 8 = 0 is

Express the following information in mathematical form using x and y variables:one number is 5 more than seven times the other number: a) x−5y=7 b) x−7y=5 c) x+7y=5 d) x−7y=−5

If x and y are positive integers such that (3x+7y) is a multiple of 11, then which of the following is also a multiple of 11?5x-3y (b) 9x+4y (c) 4x+6y (d) x+y+6

Find ( 7x^2 - y^2) xx (x-y).

The equation of conjugate axis of the hyperbola x y-3y-4x+7=0 is (a) y+x=3 (b) y+x=7 (c) y-x=3 (d) none of these

The point (-4,5) is vertex of a square and one of its diagonal is 7x-y+8=0. The equation of other diagonal is 7x-y+23=0 7y+x+=30 7y+x=31 x-7y=30 x+7y+31=0

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