At what value(s) of x does f(x) = -x4 + 2x2 have a critical point where the graph changes from decreasing to increasing? A) 0 and -1 only B) 0 and 1 only C) -1 and 1 only D) 0 only

Astudent who takes a multiple-choice test by reading the stem of each item, generating the correct response before looking at the choices, and then chooses the response closes to the answer is using a.a heuristic b.an algorithm c.vicarious problem-solving d.means-end analysis

Who wants free brainliest and free points for this drivers ed question! if answered correctly! in the u.s. highway numbering system, north-south routes have numbers that end in a. "0" b. "1" c. a letter d. an even number

Which of the following types of stars had the smallest initial mass? which of the following types of stars had the smallest initial mass?