Use Lagrange multipliers to find the maximum value of the function subject to the given constraint.
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c. f(7, 4, 6) = 202
Mathematics
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Solve the problem.A heat engine is a device that converts thermal energy into other forms. The thermal efficiency, e, of a heat engine is defined by 
where Qh is the heat absorbed in one cycle and Qc, the heat released into a reservoir in one cycle, is a constant. Find 
.
A. 
= 
B. 
= - 
C. 
= Qh - Qc
D. 
= 
Mathematics
Solve the problem.If two fair dice are rolled, what is the probability that a total of four shows?
A. 
B. 
C. 
D. 
Mathematics
Find the exact number of days from the first date to the second. Assume that the second month is in the following year, and assume no leap years.August 15 to April 6
A. 233 days B. 265 days C. 234 days D. 134 days
Mathematics
Rationalize the denominator. Simplify, if possible.
A. 
B. 
C. 
D. 
Mathematics