Find the probability.In a batch of 8,000 clock radios, 7% are defective. A sample of 10 clock radios is randomly selected without replacement from the 8,000 and tested. The entire batch will be rejected if at least one of those tested is defective. What is the probability that the entire batch will be rejected?
A. 0.100
B. 0.516
C. 0.484
D. 0.0700
Answer: B
Mathematics
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Solve the initial value problem.?2
- 3?y = ?5 sec ? tan ?; ? > 0, y(?) = 0
A. y = - 
- ?3 , ? > 0
B. y = 
+ ?2 , ? > 0
C. y = 
+ ?3 , ? > 0
D. y = - 
- ?2 , ? > 0
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Identify the units you would expect for the given quantity.The price of gravel, found by dividing its total cost in dollars by its total weight in tons.
A. tons per dollar B. cubic tons C. dollars per ton D. ton-dollars
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Solve the problem.At about what velocity do you enter the water if you jump from a 15 meter cliff? (Use 
A. 17 m/sec B. -17 m/sec C. 2 m/sec D. -8.5 m/sec
Mathematics
Use the laws of exponents to simplify each expression using positive exponents only. Assume all variables represent nonzero real numbers.x2 ? x7
A. x14 B. 14x C. x9 D. 9x
Mathematics