12x - y = -4
4x - 3y = -6 (1 point)...
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Mathematics, 21.06.2019 17:00
Sole with work in 10 years, the average number of hours of tv watched per week by teenagers dropped from 23.9 to 21.4. find the percent of change.
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Mathematics, 21.06.2019 20:30
Astore ordered 750 candles a total wholesale cost of $7910.20. the soy candles cosy $12.17 each and thespecialty candles cost $9.58each. how many of each were bought?
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Mathematics, 21.06.2019 20:30
Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x
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Mathematics, 21.06.2019 22:20
(b) suppose that consolidated power decides to use a level of significance of α = .05, and suppose a random sample of 100 temperature readings is obtained. if the sample mean of the 100 temperature readings is x⎯⎯ = 60.990, test h0 versus ha and determine whether the power plant should be shut down and the cooling system repaired. perform the hypothesis test by using a critical value and a p-value. assume σ = 5. (round your z to 2 decimal places and p-value to 4 decimal places.)
Answers: 2
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