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Solve for X ??? A. 2 / 15 B. 20 C. 30 D. / 35

Solve for X ??? A. 2 / 15 B. 20 C. 30 D. / 35
asked 6.3k views
5 votes
Solve for X ???

A. 2 / 15
B. 20
C. 30
D. / 35

Solve for X ??? A. 2 / 15 B. 20 C. 30 D. / 35-example-1
asked
User Starlays
by
8.2k points

1 Answer

3 votes

Answer:

2 sqrt(15)

Explanation:

Using the secant tangent formula

(whole secant) x (external part) = (tangent)^2

(5+7) * 5 = x^2

12*5 = x^2

60 = x^2

Taking the square root

sqrt(60) = sqrt(x^2)

sqrt(4*15) = x

2 sqrt(15) =x

answered
User Ivan Yarych
by
8.2k points
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