exam
Maths Puzzle
Numerical Ability
A lizard is crawling up a hill that rises 5 feet for every horizontal change of 30 feet. Find the slope.
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exam Other Question
x^3+2x^2-5x-6=0
Solve for x:
a) log base4 (x+2) + log base4 (n-4)=2
b) log base2 (x^2-2) - log base2 (1/2x+5)=1 Can someone please help me with these and show me how to check my answers ??????