Solve the problem.Under certain conditions the x- and y- components of a magnetic file B area given by the equations
,where k is a constant. Write these equations in terms of polar coordinates.
A. Bx = 
, By = - 
B. Bx = - 
, By = 
C. Bx = - 
, By = 
D. Bx = - 
, By = 
Answer: D
Mathematics
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Solve the problem.Suppose there are 6 roads connecting town A to town B and 7 roads connecting town B to town C. In how many ways can a person travel from A to C via B?
A. 49 B. 36 C. 42 D. 13
Mathematics
Simplify the algebraic expression.-4x - 2y - 2x - 8y
A. -16xy B. -6x - 10y C. -4x - 2x - 2y - 8y D. -10x - 6y
Mathematics
Rationalize the denominator and simplify.
A. 
B. 
C. 
D. 
Mathematics
Solve the rational inequality.
? 0
A. [-9, 0) ? (0, 9] B. (-?, -9] ? [9, ?) C. (-?, -9] ? (0, 9] D. [-9, 0) ? [9, ?)
Mathematics