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March 24, 2017

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The amount of light emitted from a battery indicator bulb pulses while the battery is charging. This can be modeled by the equation y = 60+60sin[(pi/4)t] , where y is the lumens emitted from the bulb and t is the number of seconds since the beginning of a pulse. At what time will the amount of light emitted be equal to 110 lumens?

  • Algebra 2 Honors - ,

    mhh, aren't we just solving
    60 + 60sin[(π/4)t] = 110 ?

    sin[(π/4)t] = .833333
    make sure your calculator is set to radians
    [(π/4)t] = .98511
    t = .....

    let me know what you got

  • Algebra 2 Honors - ,

    im stupid

  • Algebra 2 Honors - ,

    1.25 is what i got

  • Algebra 2 Honors - ,

    correct!
    good job

  • Algebra 2 Honors - ,

    THANK YOU!

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