What is the sign of the product (8) × (−23) × ( −21) × (−29)?

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

In right ∆abc shown below, the midpoint of hypotenuse ac is located at d and segment bd is drawn.if ab = 12 and bc = 16, then explain why bd = 10. hint: consider what you know about the diagonals of a rectangle.

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*