Calculate the inverse of the matrix and find the values for a, b, c, and d:
A=[4 12 1 10] A-^1=[a/14 b/7 c/28 d/7]

Christine went shopping and bought each of her six six nephews a? gift, either a video costing? $14.95 or a cd costing? $16.88. she spent ? $ 97.42 97.42 on the gifts. how many videos and how many cds did she? buy?

The function ƒ is defined by ƒ(x) = (x + 3)(x + 1). the graph of ƒ in the xy-plane is a parabola. which interval contains the x-coordinate of the vertex of the graph of ƒ?

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left