Simplify the expression.(5 - 2
)2
A. 37 - 20
B. 25 - 4
C. 37 + 20
D. 25 + 4
Answer: A
Mathematics
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Find the expected value.A new light bulb has been found to have a 0.02 probability of being defective. A shop owner receives 500 bulbs of this kind. How many of these bulbs are expected to be defective?
A. 20 B. 100 C. 10 D. 500
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Multiply or divide as indicated.
? 
A. 
B. 
C. 
D. 
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Find 
if 
.
?
?
A. 
B. 
C. 
D. 
E. none of these
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Solve.The price of a printer was reduced from $400 to $220. What was the percent decrease?
A. 45% B. 55% C. 50% D. 81.8%
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