A roast is taken from the refrigerator (where it had been for several days) and placed immediately in a preheated oven to cook. The temperature of the roast is R(t) in degrees Fahrenheit. The formula to find the roast temperature, given the time t minutes after being placed in the oven, is stated below. R(t) = 375 - 335e 0.007t (a) What is the temperature of the refrigerator? °F (b) Using function notation: express the temperature of the roast 45 minutes after being put in the oven, and then calculate its value. R( % = °F (c) By how much did the temperature of the roast increase during the first 14 minutes of cooking? °F (d) By how much did the temperature of the roast increase from the first hour to 14 minutes after the first hour of cooking? °F
A roast is taken from the refrigerator (where it had been for several days) and placed immediately in a preheated oven to cook. The temperature of the roast is R(t) in degrees Fahrenheit. The formula to find the roast temperature, given the time t minutes after being placed in the oven, is stated below. R(t) = 375 - 335e 0.007t (a) What is the temperature of the refrigerator? °F (b) Using function notation: express the temperature of the roast 45 minutes after being put in the oven, and then calculate its value. R( % = °F (c) By how much did the temperature of the roast increase during the first 14 minutes of cooking? °F (d) By how much did the temperature of the roast increase from the first hour to 14 minutes after the first hour of cooking? °F
Chapter6: Exponential And Logarithmic Functions
Section6.1: Exponential Functions
Problem 60SE: The formula for the amount A in an investmentaccount with a nominal interest rate r at any timet is...
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