4x^2-28x+49=5 solve the quadratic by completing the square

John bought 5 lemons and used 2 of them for a salad how much did he use for.a salad . he used % of the lemons.

The graph shows the function f(x) = (2.5)x was horizontally translated left by a value of h to get the function g(x) = (2.5)x–h.

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c