A side of the triangle below has been extended to form an exterior angle of 126°. Find the value of x.
126

Express the following as a function of a single angle, cos(60) cos(-20) - sin(60) sin(-20)

Arecipe uses 2 cups of sugar to make 32 brownies. how many cups of sugar are needed to make 72 brownies?

The vertex of this parabola is at (-2,-3). when the x-value is -1, the y-value is -5. what is the coefficient of the squared expression in the parabola's equation?