exam Maths Puzzle Numerical Ability

-x^3+2x(x-x^2)

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hey i need help on complentary angles. This is the question.

Angles Q and R are complentary. Find the measure of each if mLA=(3x-7)degrees and mLB=(11x-1)degrees.

please and thank you!
a football player kicks the football from 2ft above the ground .the path of the ball is modeled by:h(d)=-0.015d^2=1.8d=c if the ball is not caught .how far does it travel before