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A whispering room is elliptical. It measures 32 feet wide and 66 feet long. If a person is standing at one focus, her whisper can be heard by a person standing at the other focus. How far apart are the two people?

Answers

Answer 1

Answer: 57.72 ft apart

Step-by-step explanation:

Foci distance from centers given by sqrt(33^2-16^2)

Multiply by two to get the distance from each other


Related Questions

What is the area of a rectangular shaped yard enclosed by a fence that is 35 feet along the North side and 20 feet along the west side?

Answers

Answer:

700 ft

Step-by-step explanation:

35ft x 20ft = 700ft

I need help what’s the answer!!

Answers

You're right, 20 is correct

20 x 20 x 20, aka [tex]20^3[/tex] = 8000,

so [tex]\sqrt[3]{8000} = 20.[/tex]

whats the permiter and area of this triangle will mark brainleist?

Answers

Answer:

permiter 68ft

area 204ft²

Step-by-step explanation:

25ft+26ft+17ft=68ft

1/2×17ft×24ft=204ft²

I hope it's help

find the perimeter please ​

Answers

add up all the sides
(3x^2-2x-1) + (x^2+1) + (4x+5)
=4x^2 + 2x + 5

Calculate this right and you will get the brainlist in

Answers

Use Ep=mgh
Ep- gravitational potential energy (Joules)
m- mass (kg)
g- acceleration due to gravity(9.8m/s^2 on earth)
h-height above ground (metres)


1.Ep=mgh
Ep= (0.1)(9.8)(4)
Ep=3.92 Joules

2.Ep=mgh
Ep=2(9.8)(3)
Ep=58.8 Joules

What is:
(9t+5)+(3t-6)
simplified?

Answers

Answer:

12t - 1

Step-by-step explanation:

(9t+5) + (3t-6)

9t + 5 + 3t - 6

12t - 1

PLEASE HELP ME!
In a classroom of 50 students, 30 of them prefer iPads and the rest prefer laptops. what is the ratio of iPads to laptops? Answer in simplest form. If you could, please write out an explanation.

Answers

Answer:

60;40

Step-by-step explanation: 50* 2 = 100

so multiply every thing else by it to  

in simplest form tho itd be 3;2

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Answers

Answer: a

Step-by-step explanation:

What is the area of the trapezoid?

Answers

Answer:

26 this is because 4x5=20 then add the triangle which is 3x4 ÷ 2 equalling 26

Answer:

Step-by-step explanation:

(5+8)/2 = 13/2 = 6.5

6.5*4 = 26m²

The formula for the area of a trapezoid is the same as a trapezium :

(a+b)/2 *h = Area

Isabella has 63 hair bows. Isabella's sister has h more hair bows than Isabella. Choose the expression that shows how many hair bows Isabella's sister has.

Answers

Answer:

(h+63)

Step-by-step explanation:

Given that,

Isabella has 63 hair bows.

Isabella's sister has h more hair bows than Isabella. It means,

Isabella's sister = h+63

h and 63 are added as Isabella's sister has h more hair bows than Isabella.

Hence, the expression would be (h+63).

The graph represents the profit earned on the sale of boxes of cookies. What does the slope represent?

Answers

Answer:

There is no graph

Step-by-step explanation:

help pls. will mark Brainest

Answers

Answer: 36

Step-by-step explanation: multiply 2 6 and 3

6. Write an inequality that is represented by the graph. (A.REI.D.12)
8
6
4
2
0
-8
-6
24
2
6
-2
-2.
4
16

Answers

Answer:

sdsdsddssssssssssssssssssssss

Step-by-step explanation:

sddsdssdsdds

Write an equation in standard form for the line that has slope 1/3 and passes
through (-2, 8)

Answers

Answer:

        -x + 3y = 26            

Step-by-step explanation:

The equation of a line which passes through (x₁, y₁) and with slope of m in point-slope form:

                              y - y₁ = m(x - x₁)

m = ¹/₃

(-2, 8)    ⇒   x₁ = -2,  y₁ = 8

Therefore,  the equation of the line which passes through (-2, 8) and with slope of 1/3 in point-slope form:

y - 8 = ¹/₃(x - (-2))

y - 8 = ¹/₃x + ²/₃                   {multiply both sides by 3}

3y - 24 = x + 2                    {subtract x from both sides}

-x + 3y - 24 = 2                     {add 24 to both sides}

-x + 3y = 26

Can someone help me find the volume of this pyramid please?

Answers

9514 1404 393

Answer:

  796.5 cm³

Step-by-step explanation:

The volume of a pyramid is given by the formula ...

  V = 1/3Bh

where B is the area of the base, and h is the height.

Here, the base is a square, so its area is the square of the side length:

  B = (15 cm)² = 225 cm²

Then the volume is ...

  V = (1/3)(225 cm²)(10.62 cm) = 796.5 cm³

find the area. Round to the nearest whole number.

Answers

Answer:

23.

the answer is 33. But when i round its 23.

Step-by-step explanation:

can someone pls help me

Answers

Answer:

+/-11

Step-by-step explanation:

It's plus or minus eleven

10. Lori plans to buy a book for $15.99, a magazine for $3.45, and a
bookmark for $1.99. What is an estimate of the total cost of the items to
the nearest dollar?
A) $9.00
B) $20.00
C) $21.00
OD) $22.00

Answers

Answer:

C

Step-by-step explanation:

Answer:

21 dollars I think

PLEASE HELP ASAP

Two lines intersect in the figure.
What is the value of x?

Answers

Answer:

x=17°

Step-by-step explanation:

5x+6=91 (vertically opposite ∠'s equal)

5x= 91-6

5x= 85

x= 85/5

x= 17°

Select all the statements about the graphs of g (x) - 5 a? and f (x) = x2 that are true.

1. f and g open in the same direction.

2. f and g intersect twice.

3. f and g have the same axis of symmetry.

4. f and g have the same vertex.

5. g is wider than f.

Answers

Answer:

Use photo math, take a picture of the equation, and it will show everything you need to know about it!!!

please help me i will mark you brainliesttttttttttttttttttttttttttt

Answers

Answer:

ion no but pls mark me ill tell my brother to anser it and help you

Step-by-step explanation:

For the right triangle it’s 20cm^2
For the rectangle it’s 40cm^2
For the triangle it’s 14cm^2
And for the square it’s 49cm^2

The picture attached shows all my work and explains how to do it hope this helps:)

what is the Constant in
3x + 7

Answers

7 because the 3 is the coefficient and the x is the variable. The + is the operator so that leaves you the 7

Barnacles and corals are two types of animals that live in the ocean. Both animals build a hard layer of calcium carbonate around their soft body parts. What is the MOST LIKELY reason that they build these layers?

Answers

Answer:They do this so they can be safe from predators.

Step-by-step explanation: They make this hard layer so it can help protect the vulnerable soft parts of their body from other fish or mammals.

What kind of fraction will you have when the percent is over 100%

Answers

Answer:

100% means “100 out of 100” — in other words, everything. So when you say you have 100% confidence in someone, you mean that you have complete confidence in them. But a lot of times, percentages larger than 100% are perfectly reasonable.!

Answer:

"Improper Fraction"

Step-by-step explanation:

An improper fraction is a fraction where the numerator exceeds the denominator. When the percent is over 100%, then technically the numerator is exceeding the denominator when the percentage is converted to a fraction.

Example:

110%convert to fraction... [tex]\frac{110}{100}[/tex]simplify... [tex]\frac{11}{10}[/tex]

You can go further by making it a proper fraction but that is beyond the current problem we are solving.

What is the length of one side of a cube that has a surface area of 1,734 square mm?

Answers

Answer:

a = 17

Step-by-step explanation:

1,734 = 6a^2

1,734/6 = 6a^2/6

[tex]\sqrt{289}[/tex] = [tex]\sqrt{a^2}[/tex]

a = 17

Answer:

side = 17 mm

Step-by-step explanation:

1734/6 = 289

√289 = 17 mm

On Wednesday evening Sonto spent 1/2 hour doing homework,45minutes doind housework,1 hour visiting friends and 1 1/2 hour television. Write this down the information as a ratio​

Answers

Answer:

On Wednesday evening Sonto spent 30 minutes doing homework, 45 minutes doing housework, 60 minutes visiting friends and 90 minutes watching television. Write this down the information as a ratio​

Step-by-step explanation:

Total amount of time = 225 minutes

2/15 Homework

1/5 Housework

4/15 Visiting friends

2/5 Watching TV

Whole number ratio

2 : 3 : 4 : 6

28 people in 4 rooms: 63 people in 9 rooms. Are these ratios proportional?

Answers

the ratios are ratio proportional


Ashton had 28 1/2feet of wrapping paper. He uses 3/8
feet wrapping paper to wrap each gift
How many gifts can Ashton wrap?

Answers

Answer:

Step-by-step explanation.

here is a trick

try turning both fractions into a decimal and then divide then. It will be much easier.

A couple decides to keep having children until they have a girl, at which point they will stop having children. They also agree to having a maximum of three children. The table below shows the probability distribution of X=, equals the number of children such a couple would have.
X=# of children 1 2 3
P(X), .5 .25 .25
Given that \mu_X=1.75μ
X

=1.75mu, start subscript, X, end subscript, equals, 1, point, 75 children, find the standard deviation of the children such a couple would have.
Round your answer to two decimal places.
\sigma_X\approxσ
X

≈sigma, start subscript, X, end subscript, approximately equals
children

Answers

Answer:.83

Step-by-step explanation:

Khan academy

From the discrete distribution given, the standard deviation is of 0.83 children.

The distribution is:

[tex]P(X = 1) = 0.5[/tex]

[tex]P(X = 2) = 0.25[/tex]

[tex]P(X = 3) = 0.25[/tex]

The mean is 1.75.The standard deviation is the square root of the sum of the difference squared between each value and the mean, multiplied by it's respective probability.

Hence:

[tex]\sqrt{V(X)} = \sqrt{0.5(1 - 1.75)^2 + 0.25(2 - 1.75)^2 + 0.25(3 - 1.75)^2} = 0.83[/tex]

The standard deviation is of 0.83 children.

A similar problem is given at https://brainly.com/question/24188569

About 32% of the 104 children ate a school picnic ate hamburgers. The rest ate hotdogs. How many children ate hotdogs at the picnic

Answers

Answer: 71 children ate hotdogs at the picnic.

Step-by-step explanation:

Given: About 32% of the 104 children who ate a school picnic ate hamburgers.

The number of children ate hamburger = 32% of (104 children)

= 0.32 x 104

= 33.28 ≈ 33

Thus, the number of children ate hamburger = 33

Number of children ate hotdogs = 104-33 = 71

Hence, 71 children ate hotdogs at the picnic.

Other Questions
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