Use the quadratic formula to find the exact solutions.4x2 - 21x - 18 = 0
A. - 
, 6
B. - 
, 12
C. -6, 
D. -3, 6
Answer: A
Mathematics
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A. 0.4816 B. 0.09758 C. 0.2845 D. 0.1974
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Find numbers a and b, or k, so that f is continuous at every point.
A. k = 72 B. k = 56 C. k = -8 D. Impossible
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Using Green's Theorem, compute the counterclockwise circulation of F around the closed curve C.F = ln (x2 + y2)i + tan-1 
j; C is the region defined by the polar coordinate inequalities 1 ? r ? 7 and 
A. 96 B. -12 C. 50 D. 0
Mathematics
Solve the problem.On a flywheel with a 79.9-mm radius, how long is an arc subtended by a central angle of 4.07 rad?
A. 2,043 mm B. 12,991 mm C. 325 mm D. 650 mm
Mathematics