Atrain, 200 m long, travelled through a tunnel at an average speed of 20m/s. the whole train took 2 min 30 sec to pass through the tunnel completely. find the length of the tunnel in kilometres?

Akite is being flown at a 45 angle. the string of the kite is 120 feet long. how high is the kite above the point at which the string is held?

Which value of c would make he following expression completely factored? 8x+cy

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212