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pantera1 [17]
3 years ago
10

Determine whether the following problem involves a permutation or a combination and explain your answer. How many different ​-le

tter passwords can be formed from the letters ​, ​, ​, ​, ​, ​, and if no repetition of letters is​ allowed? Choose the correct answer below. A. The problem involves a permutation because the order in which the letters are selected does matter. B. The problem involves a combination because the order in which the letters are selected does not matter. C. The problem involves a combination because the order in which the letters are selected does matter. D. The problem involves a permutation because the order in which the letters are selected does not matter.
Mathematics
1 answer:
Alex_Xolod [135]3 years ago
4 0

Answer:

B. The problem involves a combination because the order in which the letters are selected does not matter.

Step-by-step explanation:

Computation technique is a method of statistics to find possible ways of combination. In computation technique it is assumed that order does not matter and letters will be selected at random. Permutation is a statistics technique to find possible ways of combination when the order does matter. Permutation technique cannot be used when order does not matter.

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Larissa practices for a swimming tournament
scoundrel [369]

Answer:

Larissa takes 59.141 seconds to complete both laps.

Step-by-step explanation:

The complete time is the sum of time taken on each lap. We translate the two statements into mathematical expressions to determine the required output:

(i) <em>She completes her first lap in 31.135 seconds</em>:

x_{1} = 31.135\,s

(ii) <em>She completes her second lap 3.129 seconds faster than the first lap</em>:

x_{2} = x_{1}-3.129\,s

x_{2} = 31.135\,s - 3.129\,s

x_{2} = 28.006\,s

Then, the time taken by Larissa to complete both laps is:

\Delta x = x_{1} + x_{2}

\Delta x = 31.135\,s+28.006\,s

\Delta x = 59.141\,s

Larissa takes 59.141 seconds to complete both laps.

4 0
3 years ago
Książka w raz z płyta kosztuje 37zl. Płyta jest o 5zl droższa od książki. Ile kosztuje ksiazka a ile płyta
Radda [10]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
The given term is 6n-38,<br> can u find the first four terms in the sequence
Hunter-Best [27]

Answer:

- 32, - 26, - 20, - 14

Step-by-step explanation:

To find the first 4 terms , substitute n = 1, 2, 3, 4 into the rule

a₁ = 6(1) - 38 = 6 - 38 = - 32

a₂ = 6(2) - 38 = 12 - 38 = - 26

a₃ = 6(3) - 38 = 18 - 38 = - 20

a₄ = 6(4) - 38 = 24 - 38 = - 14

3 0
3 years ago
What is the first step needed to solve 3 over 4 multiplied by x minus 3 equals negative 18?
NemiM [27]
My answer would be to add 3 to both sides
8 0
3 years ago
Help me please !!!!! ASAP !
irga5000 [103]

Answer:

x = 6 sqrt(3)

Step-by-step explanation:

Since this is a right triangle, we can use the Pythagorean theorem

a^2 + b^2 = c^2  where a and b are the legs and c is the hypotenuse

6^2+ x^2 = 12^2

36 + x^2 = 144

Subtract 36 from each side

x^2 = 144-36

x^2 =108

Take the square root of each side

sqrt(x^2) = sqrt(108)

x = sqrt(36*3)

x = 6 sqrt(3)

8 0
2 years ago
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