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An object with initial temperature `160 ℉` is submerged in large tank of water whose temperature is `40 ℉`. Find a formula for `F(t)`, the temperature of the object after `t` minutes, if the cooling constant is `k = 1.4`.
`F(t)=`
`F(t)=`
Box 1: Enter your answer as an expression. Example: 3x^2+1, x/5, (a+b)/c
Be sure your variables match those in the question
`40 + 120 e^(-1.4 t)`