Solve the triangle ABC. Round each answer to the nearest tenth when necessary.
A. A ? 38.1° , C ? 91.9°, c ? 62.6 m
B. A ? 38.1° , C ? 91.9°, c ? 62.7 m
C. A ? 39.7° , C ? 90.3°, c ? 62.7 m
D. A ? 39.7° , C ? 90.3°, c ? 58.3 m
Answer: C
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A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Factor completely. If the polynomial cannot be factored, say it is prime.(x - 6)2 - 9
A. (x + 3)(x + 9) B. (x - 3)(x - 9) C. (x + 3)(x - 15) D. (x - 9)2
Solve the problem.Given the revenue and cost functions R = 34x - 0.8x2 and 
, where x is the daily production, find the rate of change of profit with respect to time when 15 units are produced and the rate of change of production is 6 units per day.
A. $30.00 per day B. $60.00 per day C. $150.00 per day D. $164.40 per day
Find the second-order partial derivative.Find fxx when f(x, y) = ln
.
A. 
B. - 
C. - 
D. - 