Which is the simplified product of (2x)(x2) + (2x)(x) + (2x)(–2) + (3)(x2) + (3)(x) + (3)(–2)? A. 2x3 + 6x2 – x – 6
B. 2x3 + x2 – x – 6
C. 2x3 + 5x2 – x – 6
D. 2x3 – x2 – 7x – 6

Identify the parent function that can be used to graph the function f(x)= (1/4x)^3

Solve 5 tan x = 5√(3) for 0° ≤ x ≤ 180°. a. 60° b. 150° c. 30° d. 120°

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?