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3x + 6y = 42 and -7x + 8y = -109 solve by elimination
Answers: 2
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If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 Γ 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)
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Mathematics, 21.06.2019 18:30
Ametal rod needs to be 9 feet and 5.5 inches in length. the sections of the poles being used are each 1 foot and 10.5 inches long. how many 1ft 10.5in sections would be needed to complete the 9ft 5.5in metal rod? and how many inches of material will be left?
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Mathematics, 21.06.2019 19:00
Simplify. β4x^2 (5x^4β3x^2+xβ2) β20x^6β12x^4+8x^3β8x^2 β20x^6+12x^4β4x^3+8x^2 β20x^8+12x^4β4x^2+8x β20x^6+12x^4+4x^3β8x^2
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Mathematics, 21.06.2019 20:30
If a 36 inch yardstick casts a 21 foot shadow, how tall is a building whose shadow is 168 feet? what is the scale factor
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3x + 6y = 42 and -7x + 8y = -109 solve by elimination...
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