1.let f(x)=2x^2+x-3 and g(x)=x-1. perform the indicated operation, then find the domain. (f*g)(x)

2.let f(x)=2x^2+x-3 and g(x)=x-1. perform the indicated operation, then find the domain. (f/g)(x)

Refer to interactive solution 17.45 to review a method by which this problem can be solved. the fundamental frequencies of two air columns are the same. column a is open at both ends, while column b is open at only one end. the length of column a is 0.504 m. what is the length of column b?

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

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?