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Brums [2.3K]
3 years ago
5

I need a little help on 21

Mathematics
2 answers:
lidiya [134]3 years ago
7 0

Answer:

560 seconds.

Step-by-step explanation:

liberstina [14]3 years ago
7 0

Answer:

560 seconds

Step-by-step explanation:

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The game of Connex contains one 4-unit piece, two identical 3-unit pieces, three identical 2-unit pieces and four identical 1-un
Aleks [24]

Answer: 277 ways

Step-by-step explanation:

Let’s start bycreating 10-unit pieces using the 4-unit piece.

The arrangements are:

1). 4-3-3 (3 permutations)

2). 4-3-2-1 = 4! = 24 permutations.

3). 4-3-1-1-1 (5*[4!/(3!1!)]

= 5*4

= 20permutations

4). 4-2-2-2 (4 permutations)

5). 4-2-2-1-1 (5 *[4!/(2!2!)]

= 5*6

= 30 permutations

6). 4-2-1-1-1-1(6*[5!/(4!1!)]

= 6*5

= 30 permutations

Let’s-consider the arrangements using one or more3-unit pieces and no 4-unit piece:

7). 3-3-2-2 (4!/(2!2!)

8). 3-3-2-1-1 (5*(4!/(2!2!)

= 5*6

= 30 permutations.

9). 3-3-1-1-1-1 (6!/(4!2!) = 0

10). 3-2-2-2-1 (5*4!/(3!1!)

= 5*4

= 20permutations

11). 3-2-2-1-1-1 (6*5!/(3!2!)

= 6*10

= 60 permutations

Finally we would look at the arrangements using only 1-and 2-unit pieces:

12). 2-2-2-1-1-1-1 (7!/(4!3!)

= 35 permutations

add them all up:

(3 + 24 + 20 + 4) + (30 + 30 + 6 + 30) + (15 + 20 + 60 + 35)

=51 + 96 + 130

= 277ways

5 0
2 years ago
Please help ASAP! Will give BRAINLIEST! Please read the question THEN answer correctly! No guessing.
Phantasy [73]
Option C is correct.

try multiplying it out yourself. It should work
7 0
3 years ago
Read 2 more answers
6. Find the slope. Make sure to reduce.
zaharov [31]

Answer:

the slope is -1/7 hope this helps

5 0
2 years ago
PLS ANSWER QUICKLY WILL GIVE BRAINLIEST
lapo4ka [179]

Answer:

Point D

Step-by-step explanation:

Hope this helps :)

4 0
3 years ago
Read 2 more answers
A) 11 and 12<br> B) 8 and 9<br> C 10 and 11<br> D 76 and 78
Valentin [98]

Answer:

B

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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