Rewrite the trigonometric expression as an algebraic expression involving the variable u. Assume that 
and that the value of the "inner" inverse trigonometric expression represents an angle ? such that 
sin (csc-1 u)
A. 
B. u
C. 
D. 
Answer: D
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Solve the problem.According to the Gas Kinetic Theory, the average speed of a gas particle is given by 
where 
is the speed in m/s, k is the constant 1.38 × 10-23, T is the temperature of the gas in Kelvin, and m is the mass of the gas particle in kg. What is the average speed of an oxygen molecule with a mass of
at a temperature of 500 K?
A. 330,700 m/s B. 174 m/s C. 575 m/s D. 1020 m/s
Approximate the value using a calculator. Express answer rounded to three decimal places.e2.28
A. 15.154 B. 9.397 C. 6.198 D. 9.777
Express the product as a sum containing only sines or cosines.cos(3?) cos(6?)
A. 
[cos(9?) - sin(3?)]
B. 
[cos(3?) + cos(9?)]
C. 
[cos(9?) - cos(3?)]
D. cos2(12?2)
Solve the system by either elimination or substitution. Verify your work by using "intersect" on your graphing calculator of by checking that your result satisfies both equations of the system.
A. all points on the line 2x + 3y = 16; dependent system B. empty set solution; inconsistent system C. (-3.2, 12.8) D. (12.8, -3.2)