Solve the problem.The Redlich-Kwong equation provides an approximate model for the behavior of real gases. The equation is P(V, T) = 
- 
, where P is pressure, V is volume, T is Kelvin temperature, and a,b , and R are constants. Find the partial derivative of the function with respect to each variable.
A. PV = 
+ 
; PT = - 
+ 
B. PV = 
+ 
; PT = 
- 
C. PV = 
- 
; PT = 
+ 
D. PV = 
- 
; PT = 
+ 
Answer: D
Mathematics
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Find the product.
? 
A. 
B. 
C. 3 - b
D. 
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Find the sum Sn of the first n terms of the geometric sequence. 
, - 
, 1, - 2, 4, . . . .; n = 9
A. 
B. 
C. 
D. 
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Solve.Last year a company had 5864 employees. This year the number of employees increased by 1378. How many employees does the company have now?
A. 7252 employees B. 7142 employees C. 7242 employees D. 7342 employees
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Factor completely. State that the polynomial is prime if it cannot be factored.4x2 + 49
A. (2x + 7)(2x - 7) B. (2x - 7)2 C. (2x + 7)2 D. prime
Mathematics