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(15) exponentially. At first there were 16,000. Three years later there were 60,000. How many inhabitants would there be at the end of 10 years? E Fundamental counting principle and permutation / probability / independent events (1 16) 11. There are 5 chairs in a row. There are 9 students. How many ways can these students sit in the 5 chairs? 12. (116) How many different 7-digit telephone numbers can be written if the digit 0 cannot appear among the first 3 digits? Remember that digits can be repeated. Letter symbol for sets / set-builder notation Graph: 16. A = ( x E Z | x + 1> 1} 17. B = {x e R | x2 2 -4x - 3} (117) 18. C = (x E R | x2 + 4x x + 3 and y 5} (1 19) Sold Age word problems 14 / 81 OAge word problems (120) A man is 18 times as old as his son. In 15 years, he will be 3 times as old as his son will be then. How old are they now? 4. (66) The perimeter of an equilateral triangle is 24 meters. What is the area of the triangle? 5. (120) Twenty years ago Lucie was 2 years older than twice Myrna's age then. Six years ago Myrna was : as old as Lucie was then. How old is each person now? Rational inequalities Graph: m - 3 11. S 2; D = {Reals} (121) m + 3 Laws of logarithms / intersection of sets / union sets / venn diagrams Use M and N to represent positive numbers and write: (a) the product rule for logarithms. (b) the quotient rule for logarithms. (c) the power rule for logarithms. (122) 30. Designate the areas that represent: (a) Poz ( b ) prs ( c ) Z UP (d ) zus Locus / basic construction O