If line u and line v are parallel, what is the missing angle and how do you know

The missing angle is equal to 90 degrees

Step-by-step explanation:

If both line u and line v are parallel, and line v and the unnamed line are perpendicular; it implies that line u and the unnamed line are also perpendicular.

answer: (x)+4-5=-3

step-by-step explanation:

-362

step-by-step explanation:

(12)(4)+2(12)-34(12)+2(12)-3

  \/         \/         \/         \/

  48 +   24 -   408 + 24 - 3

      \   /               \   /

          72     -     432 - 3 = -363