Problem 3.4 A The triangles in the diagram on the previous page are similar. What is the distance across the river from Stake 1 to Tree 1? Explain your reasoning

B Describe the relationship between the perimeter of the smaller triangle and the perimeter of the larger triangle,

C The diagram on the previous page shows three stakes and two trees. In what order do you think Durell, Angie, and Tonya located the key points and measured the segments and angles? Explain your reasoning,

D Another group of students sketches a different diagram with similar triangles. They put their stakes in different places. Use the diagram below. Does the second group get the same measurement for the width of the river? Explain. Tree 2 140 Ft

Anull hypothesis states that the difference between 8 hours of sleep and 3 hours of sleep has no effect on the number of pictures a student will remember during a picture memory interface test (pmit). examining the mit database, an extremely small t-value of 0.1611 is found. this t-value is much smaller than the smallest t-value on the chart for p-value reference. from this information we can: select one: a. accept the null hypothesis because the p-value obtained shows that the difference between the two groups being tested is not statistically significant b. accept the null hypothesis because the p-value obtained was statistically significant c. reject the null hypothesis because of the p-value obtained d. reject the null hypothesis because the data obtained is statistically significant