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Directions:
Find the value of each variable using the given chord, secant, and tangent lengths. If the answer is not a whole number, round to the nearest tenth.

Question

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Picture:
http://prntscr.com/39s6wa

Directions:
Find the value of each variable using the given chord, secant, and tangent lengths. If the answer is not a whole number, round to the nearest tenth.

anonymous · Answer

@ranga

nikato · Answer

Use two secant power theorem to find x
So
7(7+15)= 5(5+x)
Solve for x

anonymous · Answer

x=25.8

nikato · Answer

Correct.
And for y, assuming that's a tangent line
You use the tangent theorem power 
So
y^2= 5(5+25.8)