1.For the triangle ABC, the following information is provided. B = 48, a = 15, and c = 12.

(Angle A is opposite side a, Angle B is opposite side b, Angle C is opposite side c.)

State which case applies when solving the triangle and which law to use.

A. Angle-Side-Side; law of cosines

B. Angle-Side-Side; law of sines

C. Side-Angle-Side; law of cosines

D. Side-Angle-Side; law of sines

2. The matrix below is an augmented matrix for a system of three linear equations. What can be

concluded about the solution of the system?

0 0 0 0

0 1 0 2

1 0 5 3

A. The unique solution of the system is (5, 3, 2).

B. There are infinitely many solutions. The solutions are (3 5t, 2, t) for all real numbers t.

C. There are infinitely many solutions. The solutions are (3 + 5t , 2, t) for all real numbers t.

D. The system is inconsistent; there is no solution.