08.01 Periodic Functions Question 1 (5 points) Questions At 15 seconds after 1:00, what number is the second-hand pointing to? 11 12 10 2 9 4 6Question 2 (5 points) At 30 seconds after 1:00, what number is the second-hand pointing to? 12 10 G Question 3 (5 points) At 1 minute after 1:00, what number is the second-hand pointing to? 10 9Question 4 (5 points) At 5 minutes after 1:00, what number is the second-hand pointing to? 12 10 3 Question 5 (5 points) At 12:15, the end of the minute hand of a clock is 8 feet above the ground. At 12:30, it is 6.5 feet off the ground. How long is the minute had of the clock? Explain how you know.Question 6 (5 points) At 12:15, the end of the minute hand of a clock is 8 feet above the ground. At 12:30, it is 6.5 feet off the ground. How high is the clock above the ground? Question 7 (5 points) Here is a point on a circle centered at (0, 0). Which equation defines the circle? Oa cty= 10 O b ' +y' = 10 Ocx'ty' = 100 O d 6 )2 + (1 - 8)2 100Question 8 (5 points) The point (3, 4) is on a circle centered at (0, 0). Which of these points lie on the circle? Select all that apply. Da (-3,-4) O b (4, 3) O c (0, 5) O d (0, 0) De (-5, 0) Question 9 (5 points) The point (1, 4) lies on a circle with center (0, 0). Name at least one point in each quadrant that lies on the circle. Question 10 (5 points) The point (8, 15) lies on a circle centered at (0, 0). Where does the circle intersect the x-axis? Where does the circle intersect the y-axis? Explain how you know.08.02 Revisiting Right Triangles Questions 1-10 of Question 1 (5 points) Which of the following is true? 10 6 8 B O a sin(A) = 6/10 Ob COS(A) = 6/10 O c sin(B) = 8/10 O d COS(B) = 6/10 Question 2 (5 points) Here is triangle ABC: Express the length of AB using sine or cosine. Question 3 (5 points) Here is triangle ABC: B Express the length of BC using sine or cosine.Question 4 (5 points) Triangle DEF is similar to triangle ABC. What is the length of segment DE? What is the length of segment EF? Explain how you know. 13 5 A 12 B D m BIVE Question 5 (5 points) Triangle DEF is similar to triangle ABC. Explain why the length of segment DE is cos(D) and the length of segment EF is sin(D). 13 5 A 12 B D E BIUS'S,Question 6 (5 points) Here is a triangle. Find cos(A), sin(A), and tan(A). Explain your reasoning- B 2 A 6 C BIVES'S, Question 7 (5 points) Triangles ABC and DEF are similar. Explain why tan(A) = tan(D). B C b E d F e D Question 8 (5 points) Here is triangle ABC. Which statements are true? Select all that apply. O a sin(A) > 1 Ob COS(A)