Determine whether or not the set is well defined.{x | x is an expensive boat on the Great Lakes}
A. Not well defined
B. Well defined
Answer: A
Mathematics
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Solve the problem.Find a formula for the distance from the point P(x, y, z) to the xy plane.
A. x
B. 
C. z
D. y
Mathematics
Find the magnitude of the indicated vector.If v = 3i + 6j, find the magnitude of -10v.
A. 30
B. 30
C. -30
D. 30i
Mathematics
Solve the problem.Find the total area of both ends of the garage.
A. 315 ft2 B. 280 ft2 C. 390 ft2 D. 157.5 ft2
Mathematics
Write the system of linear equations represented by the augmented matrix. Use x, y, z, and, if necessary, w for the variables. Then use back-substitution to find the solution.
A. {(0, 
, -5)}
B. {(
, 14, -4)}
C. {(
, 8, -4)}
D. {(- 
, 14, -4)}
Mathematics