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
Inessa [10]
3 years ago
8

A whispering chamber is an elliptically arched chamber. A unique feature of a whispering chamber is that when a person standing

at
one focus of the ellipse whispers, he can be heard by a person standing at the other focus, regardless of the dimensions of the ellipse

from which the dome is built.

Suppose that the dimensions of the ellipse used to create a whispering dome is 200 feet by 380 feet. Walter stands at one focus, and

Barbara stands at the other focus

How far apart are Walter and Barbara?

Enter your answer, rounded to the nearest tenth of a foot in the box.
Mathematics
1 answer:
lana [24]3 years ago
5 0

Answer:

323.11 ft

Step-by-step explanation:

The ellipse has two  different axes which are the major and the minor axes. The major axis is longer than the minor axis. Therefore,

Major axis length = 2*a = 380; a = 380/2 = 190 ft

Minor axis length = 2*b = 200; b = 200/2 = 100 ft

To calculate the distance between Walter and Barbara (2*c), we consider the lengths a, b, and c as a right-angle triangle. If we use the Pythagoras theorem, we have:

c^2 = a^2 - b^2 = 190^2 - 100^2 = 26100

c = sqrt(26100) = 161.55 ft

Therefore, the distance between Walter and Barbara = 2*161.55 = 323.11 ft

You might be interested in
X^(2)-8x=0 solve using quadratic formula
icang [17]
Https://us-static.z-dn.net/files/dfb/7f4f2de0e0f43b37af7de042cda55702.jpg

4 0
3 years ago
If your really good with math pls help​
Amanda [17]

Answer:

GIVEN :

Which division expression is equivalent to 4 and one-third divided by Negative Start Fraction 5 over 6 End Fraction?

A) Start Fraction 13 over 3 End Fraction divided by (Negative Start Fraction 5 over 6 End Fraction)

B)  Negative Start Fraction 5 over 6 End Fraction divided by Start Fraction 13 over 3 End Fraction

C) Start Fraction 13 over 3 End Fraction divided by Start Fraction 5 over 6 End Fraction  

D) Negative Start Fraction 13 over 3 End Fraction divided by (Negative Start Fraction 5 over 6 End Fraction)

TO FIND :

The division expression is equivalent to 4 and one-third divided by Negative Start Fraction 5 over 6 End Fraction

SOLUTION :

Given expression is 4 and one-third divided by Negative Start Fraction 5 over 6 End Fraction.

It can be written as

Now solving the above expression as below :

By converting the mixed fraction into proper fraction,

By using the quotient rule of exponents :

∴ the given expression  is equivalent to

⇒ option A) Start Fraction 13 over 3 End Fraction divided by (Negative Start Fraction 5 over 6 End Fraction) is correct.

Step-by-step explanation:

7 0
3 years ago
How do you do this please please please help me And explain if you can!
RUDIKE [14]
First you world divide Xavier and Yaozchou beads by 2 which because its two of them and they both get 219.and Xavier and Zara each get 102 and 102*3=306
3 0
3 years ago
Can 2 plus 2 equal 5
Juli2301 [7.4K]
No it will never equal five

4 0
4 years ago
If you have 12 circles an you shade in3/4 of them, how many circles do you shade?
aleksandrvk [35]
This is a formula if you need one. DON'T forget to cross-multiply

3/4 = x/12


4 0
3 years ago
Other questions:
  • What symbols relate to the numbers 25 ? 35
    14·1 answer
  • 4.5(8-x)+36=102-2.5(3x+24) show step by step how to solve please.
    5·1 answer
  • Rewrite in scientific notation 0.00014
    8·2 answers
  • Determine the missing y value if the slope of a line is 4/3 and the line passes through the points (5,x) and (2,-3)
    5·1 answer
  • the shapes below are drawn on a centimeter grid, show that the triangle and the square have the same area.
    14·1 answer
  • Someone help me. ty.​
    6·1 answer
  • Can some one please help me !!
    10·2 answers
  • Can you help A B C Or D image is here
    6·1 answer
  • Find the product. Simplify your answer.<br> (q–4)(3q–1)<br><br> Multiplying Binomials
    11·2 answers
  • 6 cookies cost $3.60. What is the cost of 20 cookies?​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!