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DENIUS [597]
3 years ago
12

Is x=2a solution 10 3x+4=12 show work don't just say yes or no

Mathematics
1 answer:
sasho [114]3 years ago
4 0

9514 1404 393

Answer:

  x = 2 2/3 is the solution; x = 2 is not a solution.

Step-by-step explanation:

The solution is ...

  3x +4 = 12 . . . . . . given

  3x = 8 . . . . . . . . . .subtract 4

  x = 8/3 = 2 2/3 . . . divide by 3

x = 2 is not a solution. The correct solution is x = 2 2/3.

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Solve for x:
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\frac{2x}{5} + 1 =  \frac{1}{15}

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Take away 1 from both sides
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\frac{2x}{5}  =  \frac{1}{15} - 1

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Evaluate the value on the right
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3 years ago
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N76 [4]

Answer:

Irrational:

3√25, √256, √141

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Step-by-step explanation:

8 0
3 years ago
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Delicious77 [7]

Hey there!!

How do we find inverses?

In versing is the just the flip-flop of the x and y.

Given equation :

...f(x) = √(2x-6)

... y = √(2x-6)

... x = √(2y-6)

Square on both sides

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Inverse :

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... x = ( y - 2 )³ + 8

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... cube root on both sides

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... ∛(x - 8 ) + 2 = y

Inverse :

f(x) = ∛( x - 8 ) + 2

Hope my answer helps!!

4 0
3 years ago
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