1. Use the Law of Cosines to find Angle A if the sides are: a=10, b=12, and c=16. Round Two Decimal Places.

A: A= 33.82°
B: A= 38.62°
C: A= 48.52°
D: A= 32.32°
E: No Solution

2. If u= <4,5> and v= <0,-1> , find 2v+5u.

A: <20,22>
B: <22,1>
C: <20,23>
D: <4,20>

3. Find the component form of the vector if the initial point if (1,5) and the terminal point is (15,9).

A: <4,11>
B: <4,12>
C: <14,-11>
D: <14,4>
E: No Solution

4. Find a unit vector in the direction of <0,-2>

A: <0,1>
B: <2,-1>
C: <4,1>
D: <0,-1>
E: No Solution

5. Using the Law of Cosines, find side b if Angle B=150°, a=10, and c=20. (Round Two Decimal Places)

A: b= 29.09
B: b= 9.90
C: b= 39.99
D: b= 40.90
E: No Solution

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12

Which expression is equal to (f+g)(x)?

In a study of the relationship between socio-economic class and unethical behavior, 129 university of california undergraduates at berkeley were asked to identify themselves as having low or high social-class by comparing themselves to others with the most (least) money, most (least) education, and most (least) respected jobs. they were also presented with a jar of individually wrapped candies and informed that the candies were for children in a nearby laboratory, but that they could take some if they wanted. after completing some unrelated tasks, participants reported the number of candies they had taken. it was found that those who were identiď¬ed as upper-class took more candy than others. in this study, identify: (a) the cases, (b) the variables and their types, (c) the main research question, (d) identify the population of interest and the sample in this study, and (e) comment on whether or not the results of the study can be generalized to the population, and if the ď¬ndings of the study can be used to establish causal relationships.