Which undefined geometric term is described as a location on a coordinate plane that is designated by an ordered pair, (x, y)?
distance
line
plane
point
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Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

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?

Solve -.016x= -16. need solving this