∠a is a right angle in △abc. which side is opposite of ∠b? question 1 options: ab¯¯¯¯¯ cb¯¯¯¯¯ ac¯¯¯¯¯ all of the above

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.