Identify the domain and range of the relation.{(-3, -8), (1, 4), (4, 1), (8, -2)}
A. domain: {-8, 4, 1, -2}
range: {-3, 1, 4, 8}
B. domain: {-3, 1, 4, 8}
range: {-8, 4, 1, -2}
Answer: B
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For the function f, use composition of functions to show that f-1 is as given.
, 
What will be an ideal response?
Use addition of y-coordinates to sketch the graph of the function between 
and 
.
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A. ?
B. ?
C. ?
D. ?
E. ?
Use Bayes' rule to find the indicated probability.Two stores sell a certain MP3 players. Store A has 34% of the sales, 5% of which are of defective items, and store B has 66% of the sales, 1% of which are of defective items. The difference in defective rates is due to different levels of pre-sale checking of the product. A person receives a defective item of this product as a gift. What is the probability it came from store B?
A. 0.275 B. 0.22 C. 0.5667 D. 0.7083
Solve the equation.
= 9 - 
A. 
B. 3
C. 
D. 2