Find all values that make the rational expression undefined. If the rational expression is defined for all real numbers, so state.
A. x = 
, x = - 
B. x = 9
C. x = 36
D. Defined for all real numbers
Answer: B
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Solve the problem.Dave, Doug, and Cindy want to divide a cake fairly using the lone chooser method. Cindy gets to be the chooser and Dave and Doug are the dividers, with Dave having to make the first division of the cake into two pieces. Suppose that x% represents the value of Dave's share (to Dave), y% represents the value of Doug's share (to Doug), and z% represents the value of Cindy's share (to Cindy). Assuming each player plays the game correctly, which of the following statements is true?
A. x% must be 
%; y must be bigger than x; z must be bigger than or equal to y.
B. y must be bigger than or equal to x; z must be bigger than or equal to y.
C. x% must be 
%; y% must be 
%; z% must be more than 
%.
D. x% + y% + z% = 100%
E. none of these
Use Simpson's Rule with n = 4 steps to estimate the integral.
A. 
B. 
C. 
D. 22
Use a calculator to find the approximate value. Express your answer in degrees rounded to two decimal places.sin-1(-0.4848)
A. -28° B. -29° C. -31° D. 151°
Write the binomial expansion of the expression.(4x2 - 1)3
A. 64x6 - 48x4 + 12x2 - 1 B. 256x8 + 64x6 - 48x4 + 12x2 - 1 C. (16x4 - 8x2 + 1)3 D. 64x3 - 48x2 + 12x - 1