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enyata [817]
3 years ago
8

The cars access code has four digits first digit cannot be zero and the last digit must be even

Mathematics
1 answer:
arlik [135]3 years ago
4 0
There's 9 choices for the first digit and 4 choices for the last digit. The number of choices for the 2nd and 3rd digits is 90 if 2 numbers are different. or 100 if duplicates are allowed.

If duplicates are allowed the answer is 9 * 100 * 4 = 3600 possible numbers.
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What is the sum of 5x*2 +3x-7 and 12x+12
Gemiola [76]

Answer:25x + 5

Step-by-step explanation:

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= (10x +2x - 7) + (12x + 12)

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Expand the brackets

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Join like terms together

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3 0
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Oduvanchick [21]

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deff fn [24]

Step-by-step explanation:

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8 0
3 years ago
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Aliun [14]
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6 0
3 years ago
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Nana76 [90]

Answer:

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Step-by-step explanation:

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Quick check:

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7 0
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