Question

Okay, last problem I need to have checked for today!
Two cars are starting from positions that are 20 miles apart. They are both headed for the same intersection, as depicted in the diagram below. Car A is traveling at 30 mph, and Car B is traveling at 45 mph. Which car will reach the intersection first?

Part I: use the law of cosines to determined how far Car B has to travel to reach the intersection. I got 28.05.
Part II: Use distance=rate x time to determine the time necessary for Car A to reach the intersection. Round your answer to the nearest hundredth of an hour. I got .6 hours...

Answer 1

Part III: use distance = rate x time to determine the time necessary for car B to reach the intersection. I got .623 hours. Part IV: Which car reaches the intersection first, and by how many hours? I got Car A by .023 hours.

Here's the diagram:

Answer 2

part 1 is right,
I'm looking at part 2 and 3 now

Answer 3

part 2 is right

Answer 4

yes all of them are right

Answer 5

thank you so much!! @study100

Answer 6

np, good job btw :)