Solve the problem.A quality-control inspector examined 250 calculators and found 12 of them to be defective. At this rate, how many defective calculators will there be in a batch of 23,500 calculators?
A. 1128
B. 3000
C. 8
D. 94
Answer: A
Mathematics
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Use the root test to determine if the series converges or diverges.
A. Converges B. Diverges
Mathematics
Solve the problem.Suppose the sales of a particular brand of appliance satisfy the relationship y = 100x + 2100, where y represents the number of sales in year x, with x = 0 corresponding to 1982. Find the number of sales in 
.
A. 3600 sales B. 7200 sales C. 7100 sales D. 3500 sales
Mathematics
Find the probability.What is the probability that a card drawn from a deck of 52 cards is not a spade?
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operations and simplify the result. Leave the answer in factored form.
- 
A. 
B. 
C. 0
D. 
Mathematics