The lowest whole-number ratio of the elements in a compound is called the
a. empirical formula
c. binary formula
b. molecular formula
d. representative formula

Which shows the pre image of triangle xyz

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?

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?