Let the function \displaystyle ff be defined by \displaystyle f\left(x\right)=x^{2}+12f(x)=x 2 +12. If \displaystyle nn is a positive number such that \displaystyle f\left(3n\right)=3f\left(n\right)f( 3n)=3f(n), what is the value of \displaystyle nn?

7x+8y=-18, 4x-9y=-3 solve the system of equations

High schoolmathematics 5 points keith is the leading goal scorer for a team in an ice hockey league. last season, he scored 42 goals in 82 games. assuming he scores goals at a constant rate, what is the slope of the line that represents this relationship if the number of games is along the x-axis and the number of goals is along the y-axis?

Will mark determine whether the conjecture is true or false. give a counterexample for any false conjecture. given: points r, s, and t conjecture: r, s, and t are coplanar. a) false; the points do not have to be in a straight line. b) true c) false; the points to not have to form right angles. d) false; one point may not be between the other two.