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seraphim [82]
2 years ago
8

Please help asaaappp!!!!!!!!!!!

Mathematics
2 answers:
notka56 [123]2 years ago
8 0
I believe the answer is B
andriy [413]2 years ago
5 0
The correct answer is c

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5. solve for x
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Answer:

x = 17, MN = 11

Step-by-step explanation:

Given 2 secants from an external point to a circle, then

The product of the external part and the whole of one secant is equal to the product of the external part and the whole of the other secant.

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7(7 + x) = 8(8 + 13) = 8 × 21 = 168 ( divide both sides by 7 )

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Then

MN = 2x - 7 = 2(9) - 7 = 18 - 7 = 11

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