The centre of circle `2x^(2)+2y^(2)+30x+40y+3=0` is `(h,k)` then the value of `h+k` is equal

The area of the circle x^(2)-2x+y^(2)-10y+k=0 is 25pi sq. units. The value of k is equal to

The line 4x+2y+k=0 divides the circumference of the circle x^(2)+y^(2)=100 in the ratio 1:2 then the value of 'k' is

If the area of the circle 4x^(2)+4y^(2)-8x+16y+k=0 is 9pi square units, then the value of k is

If the line 3x - 4y - k = 0 (k gt 0) touches the circle x^(2)+y^(2)-4x-8y-5 =0 at (a, b) then k + a + b is equal to :-

If the radius of the circle x^(2)+y^(2)-18x+12y+k=0 be 11, then k=

If the line (x-1)/(5)=(y-3)/(2)=(z-3)/(2) intersects the curve x^(2)-y^(2)=k^(2), z=0 , then the value of 2k can be equal to

If number of common tangents of the circle x^(2)+y^(2)+2x+6y+1-0 and x^(2)+y^(2)-6x+k=0 is three,then value of k is

If the line hx+ky=(1)/(a) touches the circle x^(2)+y^(2)=a^(2) then the locus of (h,k) is circle of radius

If the line 3x-4y-k=0 touches the circle x^(2)+y^(2)-4x-8y-5=0 at (a,b), then the positive integral value of (k+a+b)/(5)=