Answer the question.List all numbers that must be rejected as possible solutions.
+ 
= 
A. 0, - 
, 
B. - 
, 
C. 0, - 
, 
, 20
D. - 
, 
, -20
Answer: A
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Write the first five terms of the sequence {an}.a1 = 3, an + 1 = -an
A. 3, 0, -3, -6, -9 B. -3, 3, -3, 3, -3 C. 3, -9, 27, -81, 243 D. 3, -3, 3, -3, 3
Find all the first order partial derivatives for the following function.f(x, y) = 6x - 3y2 - 9
A. 
= -6y; 
= 6
B. 
= -3; 
= -6y - 9
C. 
= 6x; 
= -6y
D. 
= 6; 
= -6y
Solve the problem.From a boat on the river below a dam, the angle of elevation to the top of the dam is 21°29'. If the dam is 1,601 feet above the level of the river, how far is the boat from the base of the dam (to the nearest foot)?
A. 4,058 ft B. 4,048 ft C. 4,068 ft D. 4,038 ft
State if the vectors a and b are perpendicular, parallel, or neither. If a and b are parallel, state whether they point in the same direction or in opposite directions.a = 
, b = 
A. Parallel, opposite directions B. Parallel, same direction C. Perpendicular D. Neither