Find all values of ? in [0°, 360°) that satisfy the equation.
sec 2? = 2
A. {0°, 120°, 180°, 240°}
B. {15°, 165°, 195°, 345°}
C. {105°, 165°, 285°, 345°}
D. {30°, 90°, 150°, 270°}
Answer: B
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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 = 
+ 
Solve the problem.A frustum of a right circular cone has a height of 10 m, a base of radius 4m, and a top of radius 3m. Find its volume.
A. 37?
B. 
?
C. 370?
D. 
?
Solve.A rectangular carpet has a perimeter of 270 inches. The length of the carpet is 89 inches more than the width. Find the dimensions of the carpet.
A. 79 in. by 102 in. B. 112 in. by 23 in. C. 112 in. by 135 in. D. 123.5 in. by 135 in.
The general term of a sequence is given. Determine whether the given sequence is arithmetic, geometric, or neither. If the sequence is arithmetic, find the common difference; if it is geometric, find the common ratio.{4n}
A. Geometric, r = 5 B. Geometric, r = 4 C. Arithmetic, d = 4 D. Neither