Use the quotient rule to simplify. Assume all variables represent positive real numbers.
A. 25
B. 
C. 
D. 
Answer: C
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Solve the problem.The van der Waals 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 derivative of the function with respect to each variable.
A. PV = 
; PT = 
- 
B. PV = - 
+ 
; PT = 
C. PV = 
- 
; PT = 
D. PV = 
- 
; PT = 
Solve the problem.An average score of 90 for 5 exams is needed for a final grade of A. John's first 4 exam grades are 79, 89, 97, and 95. Determine the grade needed on the fifth exam to get an A in the course.
A. 90 B. 100 C. 85 D. 95
Graph the equation as a solid line. Graph the inverse relation as a dashed line on the same axes by reflecting across the line y = x.y = 4x
A. 
B. 
C. 
D. 
Find the radius or diameter of the circle.What is the diameter of a circle with radius of 16 yd?
A. 803.84 yd B. 32 yd C. 8 yd D. 50.24 yd