What is the simplified form of 48\192?
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F(x) = (x^2 + 3x − 4) and g (x) = (x+4) find f/g and state the domain.

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?

In the diagram of circle o, what is the measure of zabc?