5. what is the solution to the system of equations? {-x + 2y + z = 10 { z = 6 {3x - 2y + 2z = 8 a: (0, 2, -6) b: (0, 2, 6) c: (-1, 2, 6) d: (0, -2, 6)

If lmn=xyz, which congruences are true by cpctc? check all that apply

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

Combine the information in the problem and the chart using the average balance method to solve the problem.