What is the value of b2 - 4ac for the following equation? 2x ^2 - 2x - 1 = 0

A)-4
B)0
C)12

1jessica's home town is a mid-sized city experiencing a decline in population. the following graph models the estimated population if the decline continues at the same rate. select the most appropriate unit for the measure of time that the graph represents. a. years b. hours c. days d. weeks

Will possibly give brainliest and a high rating. choose the linear inequality that describes the graph. the gray area represents the shaded region. 4x + y > 4 4x – y ≥ 4 4x + y < 4 4x + y ≥ 4

The tile along the edge of a triangular community pool needs to be replaced? ?