It would be the second choice. This expression is a polynomial because it is multiple terms and is a degree of three because the largest exponent is three. So your answer is: 2y^3 + 5y^2 - 5y
You can use the trig ratios. Draw a diagram to see which one is appropriate. Tan would be used. Tan29=x/20 20Tan29=x Put this into your calculator and see what you get
