direction: use cross products to determine whether each pair of ratios form a proportion
[tex] 1. \: \binom{1}{2} and \: \binom{2}{4} [/tex]
[tex]2. \binom{7}{5} and \binom{9}{3} [/tex]
[tex] 3. \: \binom{10}{3} and \: \binom{50}{9} [/tex]
[tex] 4.\binom{5}{6} and \binom{15}{18} [/tex]
[tex]5. \binom{4}{7} and \binom{8}{10} [/tex]
[tex] 1. \: \binom{1}{2} and \: \binom{2}{4} [/tex]
[tex]2. \binom{7}{5} and \binom{9}{3} [/tex]
[tex] 3. \: \binom{10}{3} and \: \binom{50}{9} [/tex]
[tex] 4.\binom{5}{6} and \binom{15}{18} [/tex]
[tex]5. \binom{4}{7} and \binom{8}{10} [/tex]
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