Math126 Week 3 Quiz

Date Taken 3/7/2013 Time Spent 2 h , 11 min , 30 secs Points acquire 20 / 20 (100%) school principal Type Of inquirys settle Multiple Choice 20 20 Grade Details All Questions 1. Question The difference between the ages of 2 friends is 37 years. The sum of their ages is 55 years. understand the age of the older friend. savant swear out 46 9 47 45 teacher account statement influence fraction 8. 2 of the textbook. Points accredited 1 of 1 Comments 2. Question Which of the following is non a way to name the angle shown? Student exercise instructor account See section 10. 1 of the textbook. Points Received 1 of 1Comments 3. Question The trigons in the control below are similar. Use the proportional property of similar triangles to find the measure of x. Student Answer 34. 2 km 29. 2 km 25. 2 km 19. 2 km Instructor account statement See section 10. 2 of the textbook. Points Received 1 of 1 Comments 4. Question countersink whether or not the network is traversable . Student Answer No, it is not traversable. Yes, it is traversable. Instructor Explanation See section 10. 7 of the textbook. Points Received 1 of 1 Comments 5. Question Find the slope of the line passing through the points (0, -4) and (-6, 7).Student Answer 11/6 -11/6 -6/11 6/11 Instructor Explanation See section 8. 1 of the textbook. Points Received 1 of 1 Comments 6. Question Identify angles 2 and 7 as sky interior, alternate exterior, corresponding, or vertical. Student Answer transpose exterior Vertical Alternate interior Corresponding Instructor Explanation See section 10. 1 of the textbook. Points Received 1 of 1 Comments 7. Question Classify 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) Instructor Explanation See section 8. 5 of the textbook. P oints 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 tent is shaped care a pyramid. It has a square base measuring 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 ages is 74 years. Find the age of the older friend. Stud ent 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 flat 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. Instructor Explanation See section 10. 7 of the textbook. Poin ts Received 1 of 1 Comments 18. Question Determine whether the system is consistent, inconsistent, or dependent. 3x + 2y = 15 6x + 4y = 30 Student Answer conformable 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 * quantify are displayed in (GMT-0700) Mountain Time (US & Canada)