An arithmetic sequence is given. Find the common difference and write out the first four terms.{5n + 8}
A. d = 5; 13, 18, 23, 28
B. d = 8; 5, 13, 18, 23
C. d = 5; 5, 13, 18, 23
D. d = 8; 13, 18, 23, 28
Answer: A
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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 = 
+ 
Find the value of the indicated trigonometric function of the angle ? in the figure. Give an exact answer with a rational denominator.
Find tan ?.
A. 
B. 
C. 
D. 
Find the indefinite integral.
?
What will be an ideal response?
Write the equation of the ellipse that has its center at the origin, focus at 
and vertex at 
.
?
A. 
B. 
C. 
D. 
E. 