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Mathematics, 21.06.2019 16:00
The equation x2 β 1x β 90 = 0 has solutions {a, b}. what is a + b?
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Mathematics, 21.06.2019 19:30
Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylinβs work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?
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Mathematics, 31.08.2019 01:10
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