Find an equation of the line that satisfies the conditions. Write the equation in standard form.Through (0, 6); m = 

A. 6x - 7y = 42
B. 6x + 7y = -42
C. 6x - 7y = -42
D. 7x - 6y = -42


Answer: C

Mathematics

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A.  =  = 
B.  =  = 
C.  =  = 
D.  =  = 

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Solve the problem.Find a field G = P(x, y)i + Q(x, y)j in the xy-plane with the property that at any point (a, b) ? (0, 0), G is a vector of magnitude tangent to the circle x2 + y2 = a2 + b2 and pointing in the clockwise direction.

A. xi + yj B. xi - yj C. -yi + xj D. yi - xj

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A. ?
B. {7}
C.
D. {-7}

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Use the fact that the trigonometric functions are periodic to find the exact value of the expression. Do not use a calculator.cot 540°

A. 0
B. -1
C.
D. undefined

Mathematics