math comparing numbers 6

SAT math essentials part 6 pptx

SAT math essentials part 6 pptx
... REVIEW – Example c a2 ϩ b2 ϭ c2 32 ϩ 42ϭ c2 ϩ 16 ϭ c2 25 ϭ c2 ͙25 ϭ ͙c2 ෆ ෆ 5ϭc Example a 12 a ϩ b ϭ c2 a2 ϩ 62 ϭ 122 a2 ϩ 36 ϭ 144 a2 ϩ 36 Ϫ 36 ϭ 144 Ϫ 36 a2 ϭ 108 ෆ ෆ ͙a2 ϭ ͙108 a ϭ ͙108 ෆ 112 – ... triangle above? ෆ a ͙11 b ෆ c 65 d 11 e 65 Answer c Use the Pythagorean theorem: a2 ϩ b2 ϭ c2, where a ϭ and b ϭ a2 ϩ b ϭ c2 72 ϩ 42 ϭ c2 49 ϩ 16 ϭ c2 65 ϭ c2 65 ϭ ͙c2 ෆ ෆ 65 ϭ c ෆ Pythagorean Triples ... questions on the SAT ■ In isosceles triangles, equal angles are opposite equal sides 2 m∠a = m∠b ■ In equilateral triangles, all sides are equal and all angles are 60 ° 60 º s s 60 º 60 º s 110 – GEOMETRY...
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gre math review phần 6 pps

gre math review phần 6 pps
... Fahrenheit, for 10 days in May were 61 , 62 , 65 , 65 , 65 , 68 , 74, 74, 75, and 77 (a) Find the mean, median, and mode for the temperatures (b) If each day had been degrees warmer, what would have been ... range = 6 120 24 288 210 10 (a) 3 36 (b) 56 11 0.22 12 (a) (b) 13 (a) (b) 21 40 (b) (c) 10 40 45 14 (a) (c) 15 (a) 0.40 (b) 0.50 16 (a) 0. 56 (b) 0.94 17 (a) New York 18 (a) 19 76 (c) 0. 06 (b) 10.4 ... same period? 68 For more material and information, please visit Tai Lieu Du Hoc at www.tailieuduhoc.org ANSWERS TO DATA ANALYSIS EXERCISES (a) mean = 68 .6, median = 66 .5, mode = 65 (b) Each measure...
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