Part 1 of 2 A pot of boiling water with a temperature of 100°C is set in a room with a temperature
of 20°C. The temperature T of the water after x hours is given by T(x) = 20 + 80 e -*.
(a) Estimate the temperature of the water after 3 hours.
(b) How long did it take the water to cool to 30°C?
1°C.
After 3 hours, the tempertaure of the water will be approximately
(Type an integer or decimal rounded to one decimal place as needs.)