Find the value(s) of the variable for which the rational expression is undefined.
A. none
B. -3
C. 3
D. 0
Answer: C
Mathematics
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Calculate the area of the surface S.S is the portion of the paraboloid z = 2x2 + 2y2 that lies between z = 3 and z = 4.
A. 
B. 
C. 
D. 
Mathematics
Find the expected value.You are given 14 to 1 odds against drawing two hearts when two cards are selected at random from a standard deck of 52 cards (with replacement of the first card before the second card is drawn). This means that you win $14 if you succeed and you lose $1 if you fail. Find the expected value (to you) of the game. Round to the nearest cent.
A. $2.75 B. -$0.06 C. $0.06 D. -$0.91
Mathematics
Write the decimal as a fraction, reduced to lowest terms.0.3
A. 3
B. 
C. 
D. 3
Mathematics
Solve the inequality and graph the solution set.|z - 7| ? 0
A. [7, ?)
B. (-?, ?)
C. ?
D. [7, -7]
Mathematics