An archeologist discovered two artifacts buried beneath the ground. she found the first artifact at an elevation of meters and the second at an elevation of meters. what is the distance between these two elevations?

Rectangle leg this 11feet and perimeter of 38feet what is the width of the rectangle in feet

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?

1. if events a and b are non-overlapping events, how do you find the probability that one or the other occurs? 2. what does it mean if p(a or b) equals 1?