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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Find the product and simplify.6
? 4
A. 24
B. 48
C. 2
D. 48
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Find the identical expression for the following.
?
?
A. ?
B. 
C. ?
D. ?
E. ?
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Determine whether the graph representing the equation is symmetric with respect to the x-axis, the y-axis, the origin or none.y = 7x5 + 7x3
A. origin only B. no symmetry C. x-axis, y-axis, origin D. y-axis only
Mathematics
Solve the problem.Estimate graphically the local maximum and local minimum of f(x) = x
.
A. Local maximum: -.35; no local minimum B. No local maximum; local minimum: -.35 C. Local maximum: -.35; local minimum: -1.09 D. No local maximum; local minimum: -1.09
Mathematics