3. Dadas as matrizes A e B , calcule a matriz C na equação matricial de modo que C – 2A = B e marque corretamente. * Imagem sem legenda
A= [3 4 2 1] B=[-2 1 0 5]

1c-2 m405 what values are needed to make each expression a perfect square trinomial? 32 + 2x+ 2-20x + 22+5x+

Graph red beads cost $1 an ounce and gold beads cost $3 an ounce. juanita wants to purchase a 12-ounce mixture of red and gold beads that she can sell for $2 an ounce. the solution of the system shows the number of beads needed for juanita to break even. x + y = 12, x + 3y = 24 how many ounces of red beads will juanita buy to break even? how many ounces of gold beads will she buy?

An angle that measures between 90 and 180° is called a(,