Math126 Week 3 Quiz

Date taken 3/7/2013 Time Spent 2 h , 11 min , 30 secs Points acquire 20 / 20 (100%) suspense type Of hesitations Correct Multiple Choice 20 20 Grade inside information All suspenses 1. interview The difference between the ages of two friends is 37 years. The gist of their ages is 55 years. Find the age of the older friend. student dissolver 46 9 47 45 teacher account statement devour theatrical role 8. 2 of the textbook. Points accredited 1 of 1 Comments 2. Question Which of the followers is non a way to name the careen shown? school-age child root instructor translation See fragment 10. 1 of the textbook. Points genuine 1 of 1Comments 3. Question The triangles in the figure below are similar. Use the proportional topographic point of similar triangles to find the measure of x. Student resolving 34. 2 km 29. 2 km 25. 2 km 19. 2 km teacher Explanation See naval division 10. 2 of the textbook. Points sure 1 of 1 Comments 4. Question Determine whether o r not the network is traversable. Student Answer No, it is not traversable. Yes, it is traversable. Instructor Explanation See dent 10. 7 of the textbook. Points accredited 1 of 1 Comments 5. Question Find the slope of the bend termination through the points (0, -4) and (-6, 7).Student Answer 11/6 -11/6 -6/11 6/11 Instructor Explanation See voice 8. 1 of the textbook. Points Received 1 of 1 Comments 6. Question Identify angles 2 and 7 as alternate interior, alternate outside(prenominal), corresponding, or vertical. Student Answer Alternate exterior Vertical Alternate interior Corresponding Instructor Explanation See section 10. 1 of the textbook. Points Received 1 of 1 Comments 7. Question secernate the triangle according to sides. Student Answer Scalene Isosceles equilateral Instructor Explanation See section 10. 2 of the textbook. Points Received 1 of 1 Comments 8.Question Find the vertex of the parabola. y = -22 + 12x 13 Student Answer (5, -3) (-3, 5) (3, 5) (5, 3) I nstructor Explanation See section 8. 5 of the textbook. Points Received 1 of 1 Comments 9. Question What is the definition of sin A for the following triangle? Student Answer Instructor Explanation See section 10. 6 of the textbook. Points Received 1 of 1 Comments 10. Question A dwell is shaped like a pyramid. It has a square base meter 8 feet on a side and a height of 6 feet. What is the volume of the tent? Student Answer 512 ft3 128 ft3 16 ft3 32 ft3 Instructor Explanation See section 10. of the textbook. Points Received 1 of 1 Comments 11. Question Find the measure of the supplement of 58. Student Answer 32 148 302 122 Instructor Explanation See section 10. 1 of the textbook. Points Received 1 of 1 Comments 12. Question Evaluate the function f(x) = -x2 + 5 for x = 4. Student Answer -9 -10 -12 -11 Instructor Explanation See section 8. 5 of the textbook. Points Received 1 of 1 Comments 13. Question The difference between the ages of two friends is 2 years. The sum of their a ges is 74 years. Find the age of the older friend. Student Answer 38 36 39 37Instructor Explanation See section 8. 2 of the textbook. Points Received 1 of 1 Comments 14. Question Find the slope of the line passing through the points (-3, -10) and (4, 5). Student Answer -15/7 -7/15 15/7 7/15 Instructor Explanation See section 8. 1 of the textbook. Points Received 1 of 1 Comments 15. Question Classify the angle as acute, right, obtuse, or straight. Student Answer Obtuse Right dependable Acute Instructor Explanation See section 10. 1 of the textbook. Points Received 1 of 1 Comments 16. Question Identify angles 4 and 5 as alternate interior, alternate exterior, corresponding, or vertical.Student Answer Corresponding Alternate interior Vertical Alternate exterior Instructor Explanation See section 10. 1 of the textbook. Points Received 1 of 1 Comments 17. Question Determine whether or not the network is traversable. Student Answer No, it is not traversable. Yes, it is traversable. I nstructor Explanation See section 10. 7 of the textbook. Points Received 1 of 1 Comments 18. Question Determine whether the system is consistent, inconsistent, or dependent. 3x + 2y = 15 6x + 4y = 30 Student Answer Consistent dependent Inconsistent Instructor Explanation See section 8. of the textbook. Points Received 1 of 1 Comments 19. Question Determine whether or not the relation is a function. (1, 9), (2, 10), (3, 11), (4, 12) Student Answer No Yes Instructor Explanation See section 8. 5 of the textbook. Points Received 1 of 1 Comments 20. Question Determine whether the system is consistent, inconsistent, or dependent. 3x 3y = -9 9x 9y = -27 Student Answer Consistent Dependent Inconsistant Instructor Explanation See section 8. 2 of the textbook. Points Received 1 of 1 Comments * Times are displayed in (GMT-0700) Mountain Time (US & Canada)