exam
Maths Puzzle
Numerical Ability
A cyclist traveling at a constant speed completes 3/5 of a trip in 1 1/2 hrs. In how many additional hours will the cyclist complete the entire trip?
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exam Other Question
f(x)=-3x+2 and g(x)=2x+9: find (g*f)(x)
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1. Which of the following are functions? Explain your reasoning for a, b, and c.
a. f(x) = 2 if x>1 otherwise f(x) = -1
b. f(x) = 5 if x>0 or f(x) = -5 if x<0 or f(x) = 5 or -5 if x = 0
c. f(x) = x/10