What is the domain of f(x) = -4^2 -4x +2

The actual width ( w) of a regulation soccer field is 90 meters (m), and the actual length is 120 meters (m). a coach has drawn a scale model of the field on a blackboard. if the longest side of his drawing is 18 cm, how long is the other side of the drawing( w)?

Which expression is rational? 6. , square root two, square root 14, square root 49

If cos(θ)=2853 with θin q iv, what is sin(θ)?