An object is thrown upward at a speed of 70 feet per second by a machine from a height of 8 feet off the ground. the height h of the object after t seconds can be found using the equation h = − 16 t 2 + 70 t + 8 .when will the height be 35 feet?

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.