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
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Write a chain rule formula for the following derivative.
for w = f(p, q, r); p = g(t), q = h(t), r = k(t)
A. 
= 
+ 
+ 
B. 
= 
+ 
+ 
C. 
= 
+ 
+ 
D. 
= 
+ 
+ 
Graph the given function as a solid line (or curve) and its inverse as a dashed line (or curve) on the same set of axes.f(x) = -5x
A. 
B. 
C. 
D. 
Solve the nonlinear system of equations.x2 - y2 = 39x - y = 3
A. {(8, -5)} B. {(-8, -5)} C. {(8, 5)} D. {(-8, 5)}
Solve the problem.Find the area of the shaded triangle. Note it has its base on one of the axes. The area of a triangle is one-half, times its altitude, times the length of its base. 
A. 30 sq. units B. 15 sq. units C. 8 sq. units D. 5 sq. units