Consider the set
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A = {distinct letters in the word pipe}
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What is the cardinality of it?
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A. 9
B. 3
C. 10
D. 2
E. 5
Answer: B
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A hypothesis test is to be performed. State the null and alternative hypotheses.In a clinical study of an arthritis medication, 28% of those taking the placebo reported improvement. The manufacturer of the medication claims that among those taking the medication, the proportion reporting improvement will be higher than this.
A. Null hypothesis: proportion reporting improvement < 28% Alternative hypothesis: proportion reporting improvement > 28% B. Null hypothesis: proportion reporting improvement > 28% Alternative hypothesis: proportion reporting improvement = 28% C. Null hypothesis: proportion reporting improvement = 28% Alternative hypothesis: proportion reporting improvement > 28% D. Null hypothesis: proportion reporting improvement = 28% Alternative hypothesis: proportion reporting improvement ? 28%
Find the domain of the function.f(x) = 
A. {x|x ? -1}, or (-?, -1) ? (-1, ?) B. {x|x > 0}, or (0, ?) C. {x|x ? 1}, or (-?, 1) ? (1, ?) D. {x|x < 0}, or (-?, 0)
Describe the transformations that produce the graph of g from the graph of f.
; g(x) = 
+ 4
A. Shift it 2 units to the left and 4 units down.
B. Stretch vertically by a factor of 2. Shift it 4 units up.
C. Stretch vertically by a factor of 
. Shift it 4 units up.
D. Shift it 2 units to the right and 4 units up.
The Seedy Vin Company produces Riesling, Charbono, and Rose wines. There are three procedures for producing each wine (the procedures for production affect the cost of the final product). One procedure allows an outside company to bottle the wine; a second allows the wine to be produced and bottled at the winery; a third allows the wine to be estate bottled. The amount of wine produced by the Seedy Vin Company by each method is shown by the matrix [ W ]. Suppose the cost for each method of production is given by the matrix [ C ]. Find the cost of producing each of the three types of wine.
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Hint: This is [ C ][ W ].
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A. Riesling, 21; Charbono, 24; Rose, 48
B. Riesling, 22; Charbono, 27; Rose, 42
C. Riesling, 25; Charbono, 27; Rose, 48
D. Riesling, 22; Charbono, 23; Rose, 48
E. Riesling, 25; Charbono, 23; Rose, 42