Donner : Les antécédents de 1...
L'image de 3.
Un antécédent de 1.
L'image de-2.
f(-1) =
f
.) = 2
Dresser le tableau de variation de la courbe ci-dessus

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?