Concept explainers
a.
To find an exponential regression equation for the (t,T) data. Superimpose its graph on a
a.
Answer to Problem 66RE
The exponential regression equation for the data is,
Explanation of Solution
Given information:
A temperature probe is removed from a cup of hot chocolate and placed in water whose temperature is
Calculation: The graph is,
Hence, the exponential regression equation for the data is,
b.
To estimate when the temperature probe will read 40 degree C.
b.
Answer to Problem 66RE
After 8.67 seconds the temperature probe will read 40 degree C.
Explanation of Solution
Given information:
A temperature probe is removed from a cup of hot chocolate and placed in water whose temperature is
Calculation: The required time is obtained as,
Hence, after 8.67 seconds the temperature probe will read 40 degree C.
c.
To estimate the hot chocolate’s temperature when the temperature probe was removed.
c.
Answer to Problem 66RE
The required temperature is 96.44 degree C.
Explanation of Solution
Given information:
A temperature probe is removed from a cup of hot chocolate and placed in water whose temperature is
Calculation: The required temperature is obtained as,
Hence, the required temperature is 96.44 degree C.
Chapter 7 Solutions
Calculus 2012 Student Edition (by Finney/Demana/Waits/Kennedy)
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