Mathematics, 07.07.2019 02:30 lilpeepxliltracy
Viete's formulas - what are they used for? if we have a quadratic equation 2x^2 + 4x -6 = 0, whose roots are x1=1 and x2=-3 and where a = 2 b=4 and c=-6 then according to viete's formulas (x1 + x2) = (-b/a) and (x1 • x2) = (c/a). i suppose these formulas could be used as a double check for calculating the roots but do they serve any other purpose? (i also know there are other viete's formulas for cubic, quartic, etc. equations).
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The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z
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Viete's formulas - what are they used for? if we have a quadratic equation 2x^2 + 4x -6 = 0, whose...
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