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ValentinkaMS [17]
3 years ago
5

Find the lowest common denominator.

Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
4 0
The LCD is (x+2) ^{2}(x-2) ^{2} since x^{2} -4 factors into (x+2)(x-2).  The idea for a LCD is to have in all the denominators what makes up each individual denominator. 
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Please, Answer is needed.
Yuki888 [10]

Answer:

540 mins | 9 hours | 540, 9

420 mins | 7 hours | 420, 7

300 mins | 5 hours | 300, 5

180 mins | 3 hours | 180, 3

Step-by-step explanation:

1 hour = 60 mins

To convert hours into minutes, multiply the number of hours by 60 minutes:

9 hours × 60 mins = 540 mins

7 hours × 60 mins = 420 mins

5 hours × 60 mins = 300 mins

3 hours × 60 mins = 180 mins

5 0
3 years ago
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there are 120 people attending a wedding reception. There are 16 tables. Some are round and some are square. the round table sea
alexira [117]
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4 years ago
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labwork [276]

Answer:

  (x, y) = (0, -2248)

Step-by-step explanation:

<u>Substitution</u>

Substitute for y:

  300x -2248 = 350x -2248

  0 = 50x . . . . . . . . add 2248-300x to both sides

  x = 0

  y = 300·0 -2248

The solution is (x, y) = (0, -2248).

__

<u>Elimination</u>

Subtract the first equation from the second.

  (y) -(y) = (350x -2248) -(300x -2248)

  0 = 50x

  x = 0

  y = 300·0 -2248

The solution is (x, y) = (0, -2248).

__

<em>Additional comment</em>

If you think for a bit about what the graph looks like, you realize both lines cross at their y-intercept, (0, -2248). That point of intersection is the solution to the system of equations.

7 0
3 years ago
How do I expand the following equation with the binomial theorem?
Vsevolod [243]

Answer:

16x^4+32x^3+24x^2+8x+1

Step-by-step explanation:

(2x+1)^4

(2x+1)*(2x+1)*(2x+1)*(2x+1)

4 0
2 years ago
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malfutka [58]

Answer:

the shape is similar with yours and the friend

2 shapes=30min

3 shapes=x min

30 x 3 / 2=45 min

Step-by-step explanation:

i think good luck! i'm not sure

3 0
2 years ago
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