Solve the problem.The Redlich-Kwong equation provides an approximate model for the behavior of real gases. The equation is 
where P is pressure, V is volume, T is Kelvin temperature, and a,b , and R are constants. Find the derivative of the function with respect to each variable.
A. PV = 
+ 
; PT = - 
+ 
B. PV = 
- 
; PT = 
+ 
C. PV = 
+ 
; PT = 
- 
D. PV = 
- 
; PT = 
+ 
Answer: B
Mathematics
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Write an equation for the line described. Write the equation in the form specified.parallel to x = -2, through (5, 3)
A. y = 3 B. y = -2 C. x = 3 D. x = 5
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Find the expected value.A fair coin is tossed three times, and a player wins $3 if 3 tails occur, wins $2 if 2 tails occur and loses $3 if no tails occur. If one tail occurs, no one wins. What is the expected value of the games?
A. $0.75 B. $2.00 C. -$3.00 D. $3.00
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Solve the problem.Janet drove 276 kilometers and the trip took 4 hours. How fast was Janet traveling?
A. 1104 km/hr
B. 69 km/hr
C. 
km/hr
D. 70 km/hr
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Use the quadratic formula to solve the equation.16x2 + 1 = 3x
A. 
, 
B. 
, 
C. 
, 
D. 
, 
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