A car traveled a distance of 140 kilometers in the first two hours and 180 kiometers in the next two hours to reach is destination What was the average
speed of the car?

1. 32 km/h
2. 80 km/h
3. 140 km/h

What is the value of x in the equation 6(x + 1) – 5x = 8 + 2(x – 1)?

Given: ac and db are diameters. m∠3=

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.