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Anna71 [15]
3 years ago
9

BRAINLIEST LOL!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
2 answers:
goldenfox [79]3 years ago
8 0

Answer:

First one would be B

Second one would be x ≥ 80

egoroff_w [7]3 years ago
4 0

Answer:

B

Step-by-step explanation:

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De cuantas formas distintas se puede formar una fila de 10 personas?
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Answer:

Do you mean by standing together?

Step-by-step explanation:

6 0
3 years ago
Please help i would really appreciate it.
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3 years ago
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Which equation should be used to calculate the 43rd partial sum for the arithmetic sequence.
MariettaO [177]

Answer: First Option : Sₙ= n/2(a₁ + aₙ)

Step-by-step explanation:

The nth partial sum of an arithmetic sequence or the sum of the first n terms of the arithmetic series can be defined as the sum of a finite number of term in an arithmetic sequence.

It is calculated using the formula:

Sₙ= n/2(a₁ + aₙ)

Where :

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6 0
2 years ago
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Arlecino [84]
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7 0
3 years ago
1. How many solitions does this equation have -4(5-3x)=12x+20
Rom4ik [11]

Answer:

1. no solutions

2. one solution

Step-by-step explanation:

1. -4(5-3x)=12x+20

-20+12x=12x+20

-40+12x=12x

-40=0?????

So no solutions.

2. 3x+7(x+1)=2(6x+5)+2

3x+7x+7=12x+10+2

10x+7=12x+12

-2x+7=12

-2x=5

x=-5/2

So one solution.

6 0
3 years ago
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