Determine whether the equation defines y as a function of x.x2 + y2 = 81
A. y is a function of x
B. y is not a function of x
Answer: B
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Decide whether the compound statement is true or false. The symbol for exclusive disjunction 
represents "one or the other is true, but not both".5 + 3 = 13 
2 + 7 = 9
A. True B. False
Use the power rules for exponents to simplify. Write the answer in exponential form.(z5)4
A. 5z4 B. (z4)20 C. z20 D. z9
Solve.2x2 + xy - y2 = 3x2 + 2xy + y2 = 3
A. 
and 
B. 
and 
C. 
and 
Solve the problem. Use 3.14 as the approximate value of ?. Round to the nearest tenth unless instructed otherwise.The interior of a one story office building measures 58 ft by 116 ft and has 10 ft ceilings. If 20% of the space is devoted to hallways, how many 2,000 ft3 offices can it contain? Do not include partial offices.
A. 33 offices B. Not enough information to solve. C. 26 offices D. 53,824 offices