Graph each pair of similar triangles. Then write a proportion comparing the rise to th run for each of the similar slope triangles and find the numeric value. 70. AEFG with vertices E(1,9), F(1,5), and G(2,5); AGHI with vertices G(2,5), H(2,1), and I(3,1) 71. ADEF with vertices D(-6,5), E(-6,2), and F(-2,2); AFMW with vertices F(-2,2), M(-2,-4), and W(6,-4) 72. Use the graph given to answer the following questions: 10 a) What type of association is shown in the scatter plot? 8 b) Write an equation in slope intercept form for the line of best 6 fit that was drawn. Daily Physical Activity (h) 4 2 c) Make a conjecture about the Daily Physical Activity (h) of someone who is 14 years old. 0 LX 5 15 25 35 45 Age (years) 814 Math 1073. Write an equation for the line of best fit for the graph at the right. Length of Spring (in.) 0 1 2 3 4 5 6 7 8 9 10 Number of Weights Use the Venn Diagram to fill out questions 74-75. Steel Loops 74. Complete the two-way table below. Steel Not Steel Total 2 Loops No Loops Total 75. How many roller coasters are at the amusement park? 76. What percent of rollercoasters are steel? 77. What percent of steel rollercoasters have no loops? 78. What percent of rollercoasters without loops are not steel? For problems 10 and 11, find the mean, median, mode, and range of each data set. 79. The points scored by a football team: 21, 24, 14, 14, 0, 16, 21, 28, 6, 20 80. Weekly earnings in dollars: 245, 250, 205, 240, 250, 275, 260, 295, 255, 225, 250 814 Math 1181. Find the five-number summary of the data in problem 79. Draw a box plot of the data. a) 50% of the data is above what number? b) 75% of the data is below what number? 82. a. Find the mean absolute deviation of each set of data. Round to the nearest tenth if necessary. Describe what the mean absolute deviation represents. 19 Basketball Scores 4.9 41 37 50 38 46 54 42 56 49 47. 4160= 46 46 -49 To S 46-41=5 37- 46= (5 46-54=8 4 50-46 46-42= 4. 8 38-46-85 46-56=10 b. The standard deviation is about 6.5 points. Describe the data values that are within one standard deviation of the mean. 814 Math 12