4x-3 + 3x2 + 2x + 1

what’s the answer and is it a polynomial

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

The distance between two cities is 368 miles. if the scale on the map is 1/4 inch=23 miles, what is the distance between the cities on the map?

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)