Try another version of this question Box 1: Enter your answer as an expression. Example: 3x^2+1, x/5, (a+b)/c
An object with initial temperature `140 ℉` is submerged in large tank of water whose temperature is `50 ℉`. Find a formula for `F(t)`, the temperature of the object after `t` minutes, if the cooling constant is `k = 0.8`.
`F(t)=`
Be sure your variables match those in the question `50 + 90 e^(-0.8 t)`