Solve the system of equations by using the inverse of the coefficient matrix if it exists and by the echelon method if the inverse doesn't exist. 2x - 6y = -6 3x + 2y = 13
A. (2, 3)
B. (-3, -2)
C. (-2, -3)
D. (3, 2)
Answer: D
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Determine whether the statement is a self-contradiction, an implication, a tautology (that is not also an implication), or none of these.p ? q
A. Tautology B. Self-contradiction C. Implication D. None of these
Find the volume of the solid generated by revolving the region about the given axis. Use the shell or washer method.The region in the first quadrant bounded by x = 5y - y2 and the y-axis about the y-axis
A. 
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B. 
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C. 
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D. 
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Graph the polar equation.r = 2 - 3 sin 2?
A. 
B. 
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D. 
Solve the problem.A wheel is rotating at 5 radians per second, and the wheel has a 26-inch diameter. To the nearest foot per minute, what is the linear speed of a point on the rim?
A. 330 ft per min B. 325 ft per min C. 320 ft per min D. 315 ft per min