Solve using the elimination method.- x + 4y = -4-3x - 4y = 20

A. (-3, -3)
B. (-4, -2)
C. No solution
D. (2, -4)


Answer: B

Mathematics

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Determine convergence or divergence of the series.

A. Converges B. Diverges

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Solve the given applied problems involving variation.The pitch P of a musical tone varies inversely as its wavelength W. One tone has a pitch of 479 vibrations per second and a wavelength of 8.8 ft. Find the wavelength of another tone that has a pitch of 492 vibrations per second.

A. 0.000037 ft B. 0.12 ft C. 26,780.5 ft D. 8.6 ft

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Factor the polynomial using the negative of the greatest common factor.-10x2 - 15

A. -5(2x2 - 3) B. 5(-2x2 + 3) C. 5(-2x2 - 3) D. -5(2x2 + 3)

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Solve the inequality graphically. > 

A. (-5, -2) B. (2, 5) C. (-?, -5) ? (-2, ?) D. ?

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