Which statement best describes how to determine whether f(x) = x3 5x 1 is an even function? A. Determine whether –(x3 5x 1) is equivalent to x3 5x 1.
B. Determine whether (–x)3 5(–x) 1 is equivalent to x3 5x 1.
C. Determine whether –x3 5x 1 is equivalent to –(x3 5x 1).
D. Determine whether (–x)3 5(–x) 1 is equivalent to –(x3 5x 1).

Alicia puts $400 in a bank account. each year the account earns 5% simple interest. how much money will be in her bank account in six months?

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?

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2