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shtirl [24]
4 years ago
8

A combination lock has digit from 0 to 39 on it . three numbers are required to open the lock. how many combinations are possibl

e if you cannot have the same digit twice in a row
Mathematics
1 answer:
Mashutka [201]4 years ago
6 0
<span>A combination lock has digits from 0 to 39. three numbers are required to open.
how many combinations are possible if you cannot repeat any digits?
40*39*38 = 59280
--------------------------
How many combinations are possible if you cannot have the same digit twice in a row?

Call the number F, S, and T for 1st, 2nd, and 3rd
F is 1/40
S is any but F, = 1/39
T is any but S, = 1/39
40*39*39 = 60840 </span>
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Answer:

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Step-by-step explanation:

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3 years ago
The directions are with the question. Please answer numbers 6 through 10, please.
prisoha [69]

Answer:

6) 4 (tiny 5) in the upper corner

7) 9 (tiny 2) in the upper corner

8) 4 (tiny 2) in the upper corner

9) 3 (tiny4) in the upper corner

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Step-by-step explanation:

Once you get the hang of it, it's quite easy! Here are the steps for how I figured it out:

1) Figured out what number they are giving me. For the first one, I saw that they gave me the number 4. For the second one, they gave me the number 9 etc.

2) Next, I looked at each problem individually. For the first one, you know that they are giving you the number 4. You would then count the amount of numbers, in this case 4, that you see in the equation.

3) Now knowing the numbers of numbers in the equation, you'd write it in exponential notation. For the first one, they are giving you the number 4, however, they are giving it to you 5 times. Thus, by writing the number 5, smaller than the number 4, you are allowing you and your math teacher to know that you have to take the number 4 and multiply it by itself 5 times.

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4 0
4 years ago
The length of the hypotenuse of a 30 - 60 - 90 triangle is 16 cm.
xeze [42]

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The cone in the diagram below has a radius of 10 mm and its height is 24 mm.
Amiraneli [1.4K]
Slant height l is 26 mm
7 0
3 years ago
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goblinko [34]

Answer:

Step-by-step explanation:

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