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Grace [21]
4 years ago
6

What is the length of the longer of the two chords shown?

Mathematics
2 answers:
Rainbow [258]4 years ago
5 0

Answer:

19

Step-by-step explanation:

When 2 chords intersect then the product of the parts of one chord equal the product of the parts of the other chord, that is

12(x - 7) = 4(x + 3) ← distribute parenthesis on both sides

12x - 84 = 4x + 12 ( subtract 4x from both sides )_

8x - 84 = 12 ( add 84 to both sides )

8x = 96 ( divide both sides by 8 )

x = 12

Thus

12 + x - 7 = 12 + 12 - 7 = 17

4 + x + 3 = 4 + 12 + 3 = 19 ← longer chord

ipn [44]4 years ago
4 0

Answer:

19 !!!!

Step-by-step explanation:

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The answer is 11.265408 km.

To calculate the number of kilometers, we will use several conversions:
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Step-by-step explanation:

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