Calculate the surface area of the given surface.The part of the plane with equation 3x + 4y + z = 16 and lying in the first octant.
A. 
B. 
C. 13
D. 
Answer: B
Mathematics
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Determine if the ordered pair is a solution of the equation. Remember to use alphabetical order for substitution.(4, 4); 5x + 2y = 28
A. No B. Yes
Mathematics
Solve the equation. 
+ 5 = 17
A. 12, -12 B. -12 C. 12 D. 22, -22
Mathematics
Find the value of the indicated trigonometric function of the angle ? in the figure. Give an exact answer with a rational denominator.
Find cot ?.
A. 
B. 
C. 
D. 
Mathematics
Solve the inequality. Express your answer in set notation.x2 ? 1
A. {x| -1 ? x ? 1} B. {x| x ? -1 or x ? 1} C. {x| -1 < x < 1} D. {x| x ? 1}
Mathematics