Find all solutions to the equation. Express the solution in degrees.cot x + 
= 0
A. 150° + 180°n or 330° + 360°n
B. 150° + 180°n
C. 150° + 360°n
D. 330° + 360°n
Answer: B
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Solve the problem.Find the least squares line through the points 
and 
A. y = -15x - 12 B. y = -3x - 12 C. y = -15x + 12 D. y = -3x + 12
Provide an appropriate response.Define f(0, 0) in a way that extends f(x, y) = 
to be continuous at the origin.
A. f(0, 0) = 2 B. f(0, 0) = 16 C. f(0, 0) = 0 D. f(0, 0) = 8
Provide an appropriate response.Let A = 
and B = 
.Does the matrix A + B have an inverse?
A. Yes B. No
Find the expected value.Mr. Cameron is sponsoring an summer concert. He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain. The weather bureau predicts the chance of rain is 0.34 for the day of the concert. What are Mr. Cameron's expected concert earning?
A. $300,000 B. $360,000 C. $60,000 D. $218,400