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erastova [34]
3 years ago
13

Find the value of y, rounded to the nearest tenth. Please help me, I'd appreciate it!!

Mathematics
1 answer:
Blababa [14]3 years ago
8 0
If a secant<span> and a </span><span>tangent of a circle </span><span>are drawn from a point outside the circle, then the product of the lengths of the secant and its external segment equals the square of the length of the tangent segment.
</span><span>
y</span>² = 7(15+7)
<span>y</span>² = 7*22
<span>y</span>² = 154
<span>y = </span>√154
<span>y = 12.4  </span>← to the nearest tenth<span>
</span><span>
</span>
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