Find the value of x, rounded to the nearest tenth.

x = 25.8

Step-by-step explanation:

The product of the measures of one secant's external part and the entire secant is equal to the product of the measures of the other secant's external part and the entire secant, that is

5(5 + x) = 7(7 + 15)

25 + 5x = 7 × 22 = 154 ( subtract 25 from both sides )

5x = 129 ( divide both sides by 5 )

x = 25.8

c. prove the lengths are the same.

step-by-step explanation:

you need to prove the segments are congruent. congruent segments have the same length. find the lengths of the segments using the distance formula, and compare them.

answer: c. prove the lengths are the same.