Answer
3.6
Work Step by Step
Applying the Pythagorean Theorem:
$$ x^2+10^2=\left(x+7\right)^2 \\ x^2+100=x^2+14x+49 \\ -14x=-51\\ x=3.6$$
Geometry: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281159
ISBN 13:
978-0-13328-115-6
Chapter 12 - Circles - 12-1 Tangent Lines - Practice and Problem-Solving Exercises - Page 767: 13
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
