amahraboyland17 amahraboyland17
  • 21-09-2022
  • Mathematics
contestada

The number n of people using the elevator in an office building every hour is given
by n=2²-101 + 40. In this equation, t is the number of hours after the building
opens in the morning, 0≤t≤ 12. Will the number of people using the elevator ever be
less than 15 in any one hour? Use the discriminant to answer.

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