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Lubov Fominskaja [6]
3 years ago
8

Byron bought a keyless entry door lock that has the digits 0 through 9 on the keypad. He wants to choose a three-digit entry cod

e. How many different combinations are possible, if the digits can be repeated?
27307291,000
Mathematics
1 answer:
malfutka [58]3 years ago
7 0
There are, 3 x 2 x 1 = 6 possible ways of arranging the three digits. Therefore in that set of 720 possibilities, each unique combination of three digits is represented 6 times. So there are 720 possible combinations.

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Step-by-step explanation:

I am not sure what your problem here is.

you understand the inequality signs ?

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we can calculate every part of the expression separately, and then combine all the results into one final result.

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we look at the definition.

into what category is -2 falling ? the one with x<-2, or the one with x>=-2 ?

is -2 < -2 ? no.

is -2 >= -2 ? yes, because -2 = -2. therefore, it is also >= -2.

so, we have to use

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2 years ago
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klio [65]

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