For the region R, find the horizontal line y = k that divides R into two subregions of equal area.R is the region bounded by y = 4 - 
and the x-axis.
A. k = 1 - 2
B. k = 4 - 
C. k = 4 + 2
D. k = 4 - 2
Answer: D
Mathematics
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Perform the division.
A. x2y2 - 2 - xy
B. x2y2 - 2 - 5xy
C. xy - 2 - 
D. x2y2 - 2 - 
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Write the rational expression as an equivalent rational expression with the desired denominator.
= 
A. (x - 1)(2x + 1) B. (x - 1)(x + 6) C. x + 3 D. (x + 3)(2x + 1)
Mathematics
Find the expected value.Mr. Cameron is sponsoring an summer concert. He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain. The weather bureau predicts the chance of rain is 0.34 for the day of the concert. What are Mr. Cameron's expected concert earning?
A. $300,000 B. $360,000 C. $60,000 D. $218,400
Mathematics
Find all values of x for which the following is true: ? sec x = -1 ?
A. 
B. 
C. 
D. 
E. 
Mathematics