Which triangles are congruent in the diagram?

If (x + 8) is a factor of f(x), which of the following must be true? both x = –8 and x = 8 are roots of f(x). neither x = –8 nor x = 8 is a root of f(x). f(–8) = 0 f(8) = 0

Determine if the outside temperature is a function of the time of day or if the time of day is a function of temperature and explain why or why not.

Use the squared identities to simplify sin^2x cos^2x