Given C = 118°, a = 7, and b = 13, use the Law of Cosines to solve the triangle for the value of c. Round your answer to two decimal places.
?
A. 16.68
B. 11.51
C. 15.94
D. 17.42
E. 14.47
Answer: D
Mathematics
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Solve the problem.A contractor is considering a sale that promises a profit of $31,000 with a probability of .7 or a loss (due to bad weather, strikes, and such) of $10,000 with a probability of .3. What is the expected profit?
A. $18,700 B. $21,000 C. $28,700 D. $21,700
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Find all the first order partial derivatives for the following function.f(x, y) = 
A. 
= - 
; 
= - 
B. 
= - 
; 
= - 
C. 
= 
; 
= 
D. 
= - 
; 
= - 
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Find the area of the specified region.Inside the circle r = 
sin ? and outside the cardioid r = 1 + cos ?
A. 
B. 
C. 
D. 
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