QUESTION:- A fraction becomes 9/11,if 2 is added to both the numerator and the denominator. If ,3 is added to both the numerator and the denominator it becomes 5/6.Find the fraction.

If a and b are the measures of two first quadrant angles and sin a = 4/9 and sin b = 2/5 find sin(a+b).

What is the point-slope equation of a line with slope -5 that contains the point (6,3)

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?