Use a trigonometric ratio to find the length of x in the triangle. Give your answer to two decimal places.

Write the expression in simplified radical form. show all steps and work including any foil method work. (hint: use the conjugate. no decimal answers.) (9-2√3)/(12+√3)

What is the standard form of -5x^2+2x^4-11+x^3+3x

Which of the following is not a subset of {1,2,3}?