When you make the circle smaller, which number in the standard equation for
a circle centered at the origin decreases?

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?

Hardest math question of all time can you solve the equation. check for extraneous solutions.9∣9-8x∣ = 2x+3

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?