Rewrite the function f(x)=4(x-2)²-8 in the form f(x)=ax²+bx+c.

Which math sentence can be used to determine if the triangle is a right triangle?

The ratios 3: 9, 4: 12, 5: 15, and 6: 18 are a pattern of equivalent ratios in the ratio table. which is another ratio in this pattern?

We just started the introduction into circles and i have no idea how to do this.