If 4 items are chosen at random without replacement from 7 items, in how many ways can the 4 items be arranged, treating each ar
rangement as a different event (i.e., if order is important)?
A. 35
B. 840
C. 5040
D. 24
1 answer:
Answer:
840
Step-by-step explanation:
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To find the unit rate of the rain per hour, we do:
3÷6= 0.5
So, the unit rate is 0.5 inch of rain/hour
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