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FinnZ [79.3K]
2 years ago
13

Find the value of x. please helpp

Mathematics
2 answers:
zaharov [31]2 years ago
5 0

Answer:

<em>(A). 3</em>

Step-by-step explanation:

[ 9 + ( 2 + 3x )] × 9 = [ 10 + ( 2x + 2 )] × 10

27x + 99 = 20x + 120

7x = 21

<em>x = 3</em>

SIZIF [17.4K]2 years ago
4 0

Answer:

A

Step-by-step explanation:

given 2 secants drawn from an external point to the circle , then

the product of the measures of one secant's external part and that entire secant is equal to the product of the other secant's external part and that entire secant, that is

9(9 + 2 + 3x) = 10(10 + 2x + 2)

9(11 + 3x) = 10(12 + 2x) ← distribute parenthesis on both sides

99 + 27x = 120 + 20x ( subtract 20x from both sides )

99 + 7x = 120 ( subtract 99 from both sides )

7x = 21 ( divide both sides by 7 )

x = 3

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