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The power P in megawatt (MW), produced between mid-night and noon by a nuclear power plant is given by P = 3x2 – 42x + 349, where x is the hours of the day. At what time is the power 250 MW? |
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Answer» At 3am or at 11am the POWER produced is 250 MWStep-by-step EXPLANATION:P = 3x² - 42x + 349250 = 3x² - 42x + 3493x² - 42x + 99 =0x² - 14x + 33=0(x -3) (x -11) = 0∴ x = 3 or x = 11At 3am or at 11am the power produced is 250 MW |
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