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Anon25 [30]
4 years ago
10

How many 5-digit numbers can be formed from the integers 1, 2, ... , 9 if no digit can appear more than twice?

Mathematics
1 answer:
elena-14-01-66 [18.8K]4 years ago
6 0
5 digit number with no repeats
1st digit has 9 possibilities
2nd digit has 8 possibilities
3rd digit has 7 possibilities
4th digit has 6 possibilities
5th fight has 5 possibilities
Therefore the answer is:
9 x 8 x 7 x 6 x 5 = 72 x 210 = 15,120
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Mercury is at a distance of 46213267 km from the sun. If the value of this area is rounded off to the nearest one hundred, then
mars1129 [50]

Answer:

46,213,300 km

Step-by-step explanation:

46,213,267

in the above number ;

7 = units

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3 = thousand

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4 = 10 million

to round off to the nearest hundred, look at the number in the tens (6). If this number is greater than or equal to 5, add 1 to the hundreds unit, if this is not the case, add zero

because  6 is greater than 5, add one to the hundred value

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About how many kilograms would a squirrel weigh
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If the volume of a cereal box is 400 mm^3 and the height is 20mm, what is the base area?
Vitek1552 [10]

Answer:

The area of base of cereal box is 20 mm².

Step-by-step explanation:

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400=\text{Area of base}\times 20

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5 0
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Which polynomials are listed with their correct additive inverse? Check all that apply.
adoni [48]

Answer:

a, c, d

Step-by-step explanation:

i took the assignment

4 0
3 years ago
Can someone help me with this question ASAP
sattari [20]
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