Select the expression that is equivalent to (x + 5)2. a. x2 + 10x + 25 b. x2 + 10x2 + 25 c. x2 + 5x + 25 d. 2x2 + 10x + 25

Which region represents the solution to the given system of inequalities? |-0.5x+y23 | 1.5x+ys-1 5 4 -3 -2 -1 1 2 3 4

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?

Which of the following three dimensional figures has a circle as it’s base