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. Perpendicular
B. Parallel, same direction
C. Parallel, opposite directions
D. Neither
Answer: C
Mathematics
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Give an appropriate answer.If f(x, y, z) = (x4 + y2 + z)2 find fyy(x, y, z).
A. 4x4 + 12y2 + 4z B. 8y2(x4 + y2 + z) C. 4y2(x4 + y2 + z) D. 2x4 + 6y2 + 2z
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Solve the quadratic equation by completing the square.x(x + 2) = 35
A. 7, 5 B. -7, 1 C. -7, 5 D. -5, 7
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Two linear functions, y1 and y2, are graphed with their point of intersection indicated. Give the solution set of 
A. {10} B. {-7} C. {3} D. {-4}
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Perform the indicated operations and simplify. Assume all variables represent positive real numbers.
+ 3
- 5
A. -6
B. -6
C. -2
D. -2
Mathematics