Which of the following are composite numbers check all that are true

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)

Jim had 15 minutes to do 5 laps around his school what would his time be

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.