exam
Maths Puzzle
Numerical Ability
please help.
ln x - ln(x-5)=ln 12
Round to three significant digits.
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exam Other Question
Each question of a 5-question multiple choice exam has 3 possible answers. Suppose a student picks an answer at random for each question. Find the probability the student selects the correct answer on none of the questions.
15x-20 factor it completly, please.