Select the correct answer. Consider this equation.
cos(Ф) =
If Ф is an angle in quadrant IV, what is the value of tan(Ф)?

Two parallel lines are crossed by a transversal. what is value of x

How to use order of operation in 20 divide by 4 multiply 5 = 1

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.