1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ne4ueva [31]
3 years ago
11

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? 
Mathematics
1 answer:
serg [7]3 years ago
8 0
Okay, so first you draw a picture and let x be the distance from point D to the rest stop. Then the distance from point  to the rest stop is  8 - x

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.
You might be interested in
104 divided 4 with distributive property
Vikki [24]
You can do 104 divided by 2 and get 52 and then you can divide it for 2 again and get 26
4 0
3 years ago
Read 2 more answers
Type the integer that makes the following addition sentence true:
enot [183]

Answer:

  93

Step-by-step explanation:

Add 36 to both sides of the equation:

  36 -36 + ___ = 36 +57

  0 + ___ = 93

  ___ = 93

The integer 93 goes in the blank.

3 0
2 years ago
a rectangle has a base of 10 inches and a height of 16 inches. it is expanded so that it’s base is 15 inches. what’s its new hei
Marina86 [1]

Answer:

24

Step-by-step explanation:

multiply 10 by 1.5 to get 15.

do the same with 16

8 0
3 years ago
Read 2 more answers
Bombarding plutonium-239 with an alpha particle creates an isotope of curium. balance the equation. 239 94 pu 4 2 he → a b cm c
qwelly [4]

Since mass is neither created nor destroyed, the missing items are;

  • a = 242
  • b = 96
  • c = 1
  • d = 0
<h3>What is nuclear reaction?</h3>

The term nuclear reaction has to do with the transformation of one nucleus to another. On this case, we are going to transform P u to c m.

Since mass is neither created nor destroyed, the missing items are;

  • a = 242
  • b = 96
  • c = 1
  • d = 0

Learn more about nuclear reaction: brainly.com/question/25455333?

3 0
2 years ago
Please help. I don't know where to start on the question.​
jeyben [28]

Answer:

multiply the numbers next to the variables by the given subtitution for the variable so 5 times 14 plus 36 and 6 times 12.5 minus 1 and 4 times 14 plus 50

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • A mailbox 4 ft high casts a 5 ft shadow. How tall is a street light that casts a 26 ft shadow at the same time of the day? (to t
    11·1 answer
  • How many square units are in an office that is 18 units by 8 units?
    7·1 answer
  • Using f(x)=7x+35 what is the y-intercept
    6·1 answer
  • 120 dollars is 60 percent of how many dollars
    15·1 answer
  • A firm gives discounts to its customers who pay their bills on time. A customer receives a ten percent discount on the next invo
    15·1 answer
  • PLEASE HELP ME!!
    10·1 answer
  • A rectangular field is 348 inches long and 7 yards wide
    12·2 answers
  • Stuck on this question, can someone please help
    11·2 answers
  • If f(x)=2x+1 and g(x)=x-3, find f(g(f(x)))
    6·2 answers
  • Help. pleaseeeeeeeeeeeeeee3e<br>​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!