![frankierice020](/avatars/9583.jpg)
frankierice020
04.12.2019 •
Mathematics
Two towns, ancaster and dundas, are 4 km and 6 km, respectively, from an old railroad line that has been made into a bike trail. points c and d on the trail are the closest points to the two towns respectively. these points are 8 km apart. where a rest stop should be built to minimize the length of a new trail that must be built from both towns to the rest stop?
Solved
Show answers
More tips
- C Computers and Internet How to Create a Folder on Your iPhone?...
- G Goods and services How to sew a ribbon: Tips for beginners...
- F Food and Cooking How to Make Mayonnaise at Home? Secrets of Homemade Mayonnaise...
- C Computers and Internet Which Phone is Best for Internet Surfing?...
- F Food and Cooking Everything You Need to Know About Pasta...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
- C Computers and Internet How to Learn to Type Fast?...
Answers on questions: Mathematics
- M Mathematics If the tetrahedrons on your solid have edges that are 4 inches long, what is the area of one of its triangular faces? Round your answer to the nearest hundredth. Show...
- M Mathematics The question= find the percent of each number 1.) 78% of 160 2.) 12% of 325 also could u put an explanation...
- M Mathematics Afootball team must move the ball forward at least 10 yards from its starting point to make a first down.if the team has 3 losses of 2 yards each and gain of 12 yards,does...
- M Mathematics What is the volume of the right rectangular prism? 16 in³ 24 in³ 120 in³ 128 in³ rectangular prism with dimensions labeled length of 8 inches, width of 3 inches, and...
- M Mathematics Physicists estimate that there are between 1078 and 1082 atoms in the universe. How do these two numbers compare with one another? If the larger number is right, how...
- M Mathematics Nene tripled a cookie recipe for a party. the original recipe called for 3.25 cups of sugar. nene tripled the sugar amount and poured it into a mixing bowl. the mixing...
- M Mathematics Given the diagram to the right,determine m...
- S Spanish I’m doing a Spanish test and need the answers for this verb...
- M Mathematics Based on the information provided in the graph, for which of the following situations could you expect to have the greatest increase in salary? A graph titled Median...
Ответ:
You know that the length of the new trail is y + z, where y is the distance from Ancaster to the rest stop and z is the distance from Dundas to the rest stop.
Now by the Pythagorean theorem, y^2 = 4^2 + x^2 and z^2 = 6^2 + (8 - x) ^2
So take square roots of these, add them, and minimize.
Note: I am assuming the path is perfectly straight, otherwise this approach fails.
Ответ: