Decide whether the two events are disjoinot randomly selecting a blue scarf, randomly selecting a scarf that is frayed and explain why or why not.

The tiles below are pieces of a normal ecg tracing representing a little less than two heartbeats at a resting rate of 80 bpm. arrange the tiles in their correct order. rank from first to last. do not overlap any tiles.

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2

How many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.) how many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.)