# Math126 Week 3 Quiz

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• Topic: Question, Consistency, Interior
• Pages : 7 (818 words )
• Published : March 25, 2013

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Date Taken: 3/7/2013
Time Spent: 2 h , 11 min , 30 secs
Points Received: 20 / 20 (100%)

Question Type: # Of Questions: # Correct:
Multiple Choice 20 20

1. Question : The difference between the ages of two friends is 37 years. The sum of their ages is 55 years. Find the age of the older friend.

9
47
45
Instructor Explanation: See section 8.2 of the textbook.

2. Question : Which of the following is not a way to name the angle shown?

Instructor Explanation: See section 10.1 of the textbook.

3. Question : The triangles in the figure below are similar. Use the proportional property of similar triangles to find the measure of x.

29.2 km
25.2 km
19.2 km
Instructor Explanation: See section 10.2 of the textbook.

4. 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.

5. Question : Find the slope of the line passing through the points (0, -4) and (-6, 7).

-11/6
-6/11
6/11
Instructor Explanation: See section 8.1 of the textbook.

6. Question : Identify angles 2 and 7 as alternate interior, alternate exterior, corresponding, or vertical.

Vertical
Alternate interior
Corresponding
Instructor Explanation: See section 10.1 of the textbook.

7. Question : Classify the triangle according to sides.

Isosceles
Equilateral
Instructor Explanation: See section 10.2 of the textbook.

8. Question : Find the vertex of the parabola.
y = -2x2 + 12x - 13

(-3, 5)
(3, 5)
(5, 3)
Instructor Explanation: See section 8.5 of the textbook.

9. Question : What is the definition of sin A for the following triangle?

Instructor Explanation: See section 10.6 of the textbook.

10. Question : A tent is shaped like 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?

128 ft3
16 ft3
32 ft3
Instructor Explanation: See section 10.5 of the textbook.

11. Question : Find the measure of the supplement of 58°.

148°
302°
122°
Instructor Explanation: See section 10.1 of the textbook.

12. Question : Evaluate the function f(x) = -x2 + 5 for x = 4.