Use Gauss-Jordan row reduction to solve the given system of equations.
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What will be an ideal response?
Mathematics
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The value V, in dollars, of an automobile t years after 2010 is given by the formula
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Solve this equation for t to express the time in years since 2010 as a function of the value of the car.
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A. There is no solution.
B. ?
C. 
D. ?
Mathematics
Find the center and radius of the circle.x2 + (y - 5)2 = 4
A. (0, -5), r = 2 B. (-5, 0), r = 4 C. (0, 5), r = 2 D. (5, 0), r = 4
Mathematics
Find the measures of two angles, one positive and one negative, that are coterminal with the given angle.240°
A. 600°; -120° B. 420°; -120° C. 600°; -210° D. 510°; -30°
Mathematics
Factor the expression completely, if possible.49a3b + 42a2b + 9ab
A. ab(7a + 3)(7a - 3) B. ab(7a - 3)2 C. ab(7a + 3)2 D. Does not factor
Mathematics