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asambeis [7]
2 years ago
11

Please help will mark brainlest!!

Mathematics
1 answer:
kipiarov [429]2 years ago
6 0

Answer:

11

Step-by-step explanation:

The angles will equal 180.

Thus, the equation is 9x-5+6x+20=180.

15x+15=180.

15x=165.

divide by 15 on both sides, x = 11.

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(a) and (b) are not equivalent

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Given

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Required

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25^{m-1

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25^{m-1} = \frac{25^m}{25}

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(b)\ 25^{2m - 1}

We have:

25^{2m - 1}

Apply law of indices

25^{2m - 1} = \frac{25^{2m}}{25}

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<em></em>

<em />(c)\ 5^{2m-1}<em />

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<em />5^{2m-1}<em />

Apply law of indices

<em />5^{2m-1} = \frac{5^{2m}}{5^1}<em />

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<em />

<em>This is an equivalent expression</em>

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