When an object is removed from a furnace and placed in an environment with a constant temperature of 23°C, its core temperature is 720°C. The temperature of the object t hours after it has been removed from the furnace is described by the functionF (t) = 23 + 697e−0.261t
Based on this function, how warm will the object be after five hours i got 195 but that cant be right not a choice

Question

When an object is removed from a furnace and placed in an environment with a constant temperature of 23°C, its core temperature is 720°C. The temperature of the object t hours after it has been removed from the furnace is described by the functionF (t) = 23 + 697e−0.261t 
Based on this function, how warm will the object be after five hours i got 195 but that cant be right not a choice

anonymous · Answer

unless it is none of the above just check plz thanks

anonymous · Answer

Please let me know if there are any exponents in that formula

anonymous · Answer

The reason no one has helped you so far is the formula doesn't seem clear

anonymous · Answer

e^

anonymous · Answer

Looking this over I'm assuming the equation is the following:
$$F(t) = 23 + 697e ^{-0.261t}$$
If so plugging in 5 hours you get the following:
$$F(5) = 23 +697e ^{-0.261*5}= 212$$