exam
Maths Puzzle
Numerical Ability
given f(x)=x^2-3x-7, find f(5)
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exam Other Question
combining like terms?
-(2x+y) - 2(-x-y)
an airplane is flying 10,500 ft above the level ground. the angle of depression fromt the plane to the base of a tree is 13 degree 50'. how far horizontally must the plane fly to