Which of the graphs below could not possibly be the graph of a probability function f(x)?
A. graphs A and C
B. graphs A and B
C. graph B only
D. graphs B and C
E. none of these
Answer: C
Mathematics
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Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. 0 B. -12 C. 1 D. -4
Mathematics
Round as indicated.9725 to the nearest ten
A. 9830 B. 9720 C. 9740 D. 9730
Mathematics
A new company manufactures tennis rackets. The fixed expenses are $78,490 and the variable expenses are $14 per racket produced. What is the expense of producing 3,500 rackets?
A. $49,000 B. $81,990 C. $127,490 D. $147,900
Mathematics
Write as the sum and/or difference of logarithms. Express powers as factors. log8
A. 
log8p ? 
log8q ÷ 2log8t
B. 
log8p + 
log8q - 
log8t
C. 
log8p + 
log8q - 2log8t
D. 9log8p + 7log8q - 2log8t
Mathematics