How do you find the measures of angles with a vertex inside or outside a circle?

What is the value of the discrimination for the quadratic equation 0=×2+2+×2

Write the equation of the circle centered at (10,-2) with radius 2

For a particular set of atmospheric conditions, the function y z 349 models the frequency, y, in waves per second, of sound waves with a wavelength of y meters a note played on a guitar has a frequency of 440 waves per second. to the nearest centimeter what is the wavelength of the note? centimeters