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lbvjy [14]
2 years ago
7

How many possible combinations are there on a 4 digit lock using numbers 0-9, if duplicate numbers are not allowed?

Mathematics
1 answer:
solmaris [256]2 years ago
4 0
0,1,2,3,4,5,6,7,8,9 = 10 possible numbers
No repeats so every time you use one subtract it from the amount of numbers you have.
10x9x8x7=5,040
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Which expression is equivalent to |a|≤5 ?
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Step-by-step explanation:

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Compare adding unlike fractions and adding like fractions
muminat

Answer:

We just add numerators and rewrite denominator.

Adding unlike dominators:

We need to find the same denominators. You need to find the least common multiple (LCM) of the two denominators.

Step-by-step explanation:

You mean unlike denominators and like denominators.

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I do no understand this
vovangra [49]

The equation of a line for the given slope is y=\frac{1}{2} x+1.

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Given data:

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<u>Point-slope formula:</u>

y-y_1=m(x-x_1)

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Anybody good at math?
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Yup! We're all pretty good here. :)
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