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OpenStudy (anonymous):
During a manufacturing process, a metal part in a machine is exposed to varying temperature conditions. The manufacturer of the machine recommends that the temperature of the machine part remain below 141°F. The temperature T in degrees Fahrenheit x minutes after the machine is put into operation is modeled by T = – 0.005x2 + 0.45x + 125. Will the temperature of the part ever reach or exceed 141°F? Use the discriminant of a quadratic equation to decide.
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OpenStudy (jhannybean):
The discriminant of a quadratic : \(\large D = b^2 -4ac\) \[\large b = 0.45 \ , \ a=-0.005 \ , \ c = 125\] now you just plug n chug.
OpenStudy (anonymous):
okay, thanks
OpenStudy (jhannybean):
No problem.
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