Find the value of b^2 - 4ac when a = -2, b = 5, and c= -1.

Afurniture store has 1,500 chairs in storage. a manager uses three delivery receipts to simulate samples to check 100 chairs and note the number of brown chairs. suppose the actual number of brown chairs is 1,080. about how many brown chairs are

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?

Which statement accurately explains whether a reflection over the y axis and a 270° counterclockwise rotation would map figure acb onto itself?