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The Code for Some Garage Door Openers Consists of 15

Question 7

Multiple Choice

The code for some garage door openers consists of 15 electrical switches that can be set to "+" , "0" , or "-" by the owner. With this type of opener, how many different codes are possible?


A) 14,350,167
B) 14,347,707
C) 14,348,907
D) 14,348,659

Correct Answer:

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