Respuesta :

semsee45

Answer:

C. 10.5

Step-by-step explanation:

Intersecting chords theorem

If two chords intersect in a circle, the products of the measures of the segments of the chords are equal.

⇒  15 · 7 = 10 · x

⇒  105 = 10x

⇒ x = 105 ÷ 10

⇒ x = 10.5