ELEM LINEAR ALGB 12E AC\LL
12th Edition
ISBN: 9781119498889
Author: Anton
Publisher: WILEY
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Early Monday morning, the temperature in the lecture hall has fallen to 40°F, the same as the temperature outside. At 7:00 A.M., the janitor turns on the furnace with the thermostat set at 72°F. The time constant
for the building is = 3 hr and that for the building along with its heating system is
1
K
A.M.? When will the temperature inside the hall reach 71°F?
1
=
1
hr. Assuming that the outside temperature remains constant, what will be the temperature inside the lecture hall at 8:30
2
At 8:30 A.M., the temperature inside the lecture hall will be about
(Round to the nearest tenth as needed.)
1°F.
Find the absolute extrema of the function f(x, y) = x² + y² - 3x-3y+3 on the domain defined by
x² + y² <9.
Round answers to 3 decimals or more.
Absolute Maximum:
Absolute Minimum:
Find the maximum and minimum values of the function f(x, y) = e² subject to ï³ + y³ = 128
Please show your answers to at least 4 decimal places. Enter DNE if the value does not exist.
Maximum value:
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