Find the specified minor and cofactor for the matrix A.M22 and A22 if A = 
A. M22 = 21 and A22 = 21
B. M22 = -21 and A22 = 21
C. M22 = 21 and A22 = -21
D. M22 = -21 and A22 = -21
Answer: D
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Sketch the graph represented by the equation.49(x2 + 6x + 9) = 36(y2 - 49)
A. 
B. 
C. 
D. 
Solve the radical equation. Check all proposed solutions.x - 
= 4
A. x = 1, 2 B. x = 9 C. x = -1 D. x = 2, 9
Solve the problem.A small company sells stock for 7
dollars per share. How much will 248 shares cost?
A. 217 dollars
B. 1798 dollars
C. 34
dollars
D. 219 dollars
To use the Law of Sines to solve a triangle, we must know:
(a) The measure of all three sides. (b) The measure of two sides and an angle opposite one of them. (c) The measure of at least one side and any two angles. (d) The measure of two sides and their included angle. (e) Answers (a) or (d). (f) Answers (b) or (c).