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SVEN [57.7K]
3 years ago
5

Solve for xfind ACthis is the last question I'm posting ​

Mathematics
1 answer:
denis23 [38]3 years ago
8 0

Answer:

x = 15, AC = 25

Step-by-step explanation:

Given a tangent and a secant from a external point to a circle, then

The product of the external part and the whole of the secant is equal to the square of the tangent.

(9)

12(12 + x) = 18² = 324 ( divide both sides by 12 )

12 + x = 27 ( subtract 12 from both sides )

x = 15

(10)

9(9 + 3x + 1) = 15²

9(3x + 10) = 225 ( divide both sides by 9 )

3x + 10 = 25 ( subtract 10 from both sides )

3x = 15 ( divide both sides by 3 )

x = 5

Then

AC = 3x + 10 = 3(5) + 10 = 15 + 10 = 25

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IgorLugansk [536]
According to the question, 
Let,
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"y" represent the number of miles sarah walked.
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3 years ago
Im doing decimals greatest to least and i need help with number 12 and 13
erma4kov [3.2K]

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just look at the numbers ^ and dont just hastily read it over assuming that 1.1 is smaller because it "has less digits"

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