A chord consists of notes that sound good together. The C major chord starting at middle C has the following frequencies: C - 262 Hz E - 330 Hz G - 392 Hz determine the ratio of the frequency of E to C. Express the answer in a simple integer ratio. How many E waves will fit in the length of four C waves. a. 2 b. 3

Answers

Answer 1

Answer:

The frequency of note E is:

f(E) = 330 Hz

The frequency of note C is:

f(C) = 262 Hz

The ratio of the frequency of note E to the frequency of note C is just the quotient of these two frequencies:

r  = f(E)/f(C) = 330Hz/262Hz = 330/262 = 1.26

Now, we want to find how man E waves will fit in the length of four C waves.

Note that here the word "length" is used, so we need to work with the wavelengths, not with the frequencies.

For waves, we have the relationship:

v = f*λ

where:

v = velocity (in this case, velocity of the sound = 343 m/s)

f = frequency

λ = wavelength.

So, the length of a single E wave is:

λ(E) = (343 m/s)/(330 1/s) = 1.04 m

And the length of a single C note is:

λ(C) = (343 m/s)/(262 1/s) = 1.30 m

In four C waves, the length is:

4*λ(C) = 4*1.30m = 5.2m

The number of E waves that fit in the length of four C waves is equal to the quotient between the length of four C waves and one E wave:

N = (4*λ(C))/(λ(E) ) = (5.2 m)/(1.04m) = 5.14

So we can fit 5 E waves into four C waves.

Answer 2

Answer:

The ratio of the frequency of E to C can be found by dividing the frequency of E by the frequency of C:

330 Hz / 262 Hz ≈ 1.26

To express the answer in a simple integer ratio, we can divide both 330 Hz and 262 Hz by their greatest common factor, which is 2:

330 Hz / 2 = 165 Hz

262 Hz / 2 = 131 Hz

So the ratio of the frequency of E to C is:

165 Hz / 131 Hz = 15/12 ≈ 1.25

This ratio is approximately equal to 5/4

Therefore, the answer is (A) 5 to 4


Related Questions

Select the letter of the correct answer. A museum in South Africa uses paintings of right-angled triangles to teach children about the Pythagorean Theorem: A squared + B squared = C squared Let's say that A = 4 and B = 3. Based on the theorem, what is the value of C squared? Choose the correct expression. A 42+
32 B (4 x 3)2 C (4 + 3)2 D 4 + 3 ​

Answers

The answer is C I think

I WILL GIVE BRAINLIEST!!!!!!! A video game developer wants to know how long it takes people to finish playing their new game. They surveyed a random sample of 13 players and asked how long it took them (in minutes). 1.235 952 457 1,486 1,486 | 1,759 1,148 548 1,0371,864 | 1,245 866 1,431 a. Estimate the median time it will take all players to finish this game. minutes b. Find the interquartile range for this sample minutes​

Answers

Answer:

a)  median = 1,148 minutes

b)  IQR = 549.5

Step-by-step explanation:

Q1 = (952 + 866) / 2 = 909

Q3 = (1431 + 1486) / 2 = 1458.5

IQR = 1458.5 - 909.0 = 549.5

I need to know what is the factor is the ball height changing after each bounce

Answers

Answer:

After each bounce it reaches a height which is 75% of its maximum height after the previous bounce.

Step-by-step explanation:

Which one is an example of an answer that has no-solutions? *

Answers

Answer:

3 = 6

Step-by-step explanation:

Martika surfs with her friends at Virginia Beach. Her friend, Mark caught 8 waves out of 20 possible waves to ride in the shore. They plan to stay out in the water for 50 more waves. How many of the 50 waves do you predict Mark will catch?

Answers

Answer:

40 waves

Step-by-step explanation:

Prob (Mark catches waves) = Times waves caught / Total waves =  8 / 20 =  4 / 5 = 20%

Predicted waves out of 50 , caught = 4 / 5 or 20% of 50  = (4 / 5) x 50 = 40

Alternatively, multiplying numerator & denominator of wave catch probability ie 4 / 5 with 10 each , we get (4 x 10) / (5 x 10) = 40 / 50 . This also signifies 40 out of 50 waves are predicted to be caught.

Which of the following terms best describes the set of all points in a plane for
which the difference between the distances of a given point to two fixed foci
equals a certain constant?
Focus
Focus
A. Hyperbola
B. Circle
C. Ellipse
D. Parabola

someone HELPP PLSSS

Answers

A would be the correct answer:) hope this helps!!

The set of all points in a plane for which the difference between the distances of a given point to two fixed foci equals a certain constant

is a A. Hyperbola.

What is a hyperbola?

A hyperbola is symmetric along its conjugate axis and resembles the ellipse in many ways.

Examples of the hyperbola that are frequently seen include the path taken by the tip of a sundial's shadow, the scattering trajectory of subatomic particles, etc.

We all know the pictorial representation of a circle, ellipse, parabola, and hyperbola.

A hyperbola is subject to concepts like foci, directrix, latus rectus, and eccentricity.

The given diagram and statements represent a hyperbola.

learn more about hyperbolas here :

https://brainly.com/question/28989785

#SPJ7

Please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!

Answers

Answer:

30 m

Step-by-step explanation:

Picture the question as a triangle

The length of the string is the hypotenuse, 60 m

The angle from the ground is 30

The right angle C is from the height of the kite to the ground

The missing angle A 60 is located on the top of the kite

now find b, the height

The cosine of an angle is equal to the ratio of the adjacent side to the hypotenuse.

cos(A)=adj/hyp

cos(A)=b/c

b=c*cos(A)

b=60*cos(60)

b=30

Someone help me ASAP please and thank you

Answers

A.

Step-by-step explanation:

It's exactly what's asked for.

The diameter of Circle X is 18 cm. The diameter of Circle Y is 29 cm. Which circle has the greater area and by how​ much? Use 3.14 for . Use pencil and paper. Describe two ways you can compare the areas of two circles. Explain when you might prefer to use each.

Answers

Y has a bigger area, 660.185 while x is, 254.34
The difference is 405.845


Using the line of best fit for the above data, what is the approximate difference between the actual value for x = 10 and the predicted value for x= 10?
A. 1.60
B. 1.65
C. 1.70
D. 1.75

Answers

Answer:

I dont know

Step-by-step explanation:

The planet venus is on average 2.5x10^7 kilometers from earth. The planet mars is on average 2.25x10^8 kilometers from earth. What is the average distance from venus to mars?

Answers

Answer:

The average distance from venus to mars is 2.5x10⁸ kilometers.

Step-by-step explanation:

We know:

d₁: average distance between venus and earth = 2.5x10⁷ km

d₂: average distance between mars and earth = 2.25x10⁸ km

We can find the average distance from venus to mars as follows:

[tex] d_{t} = d_{1} + d_{2} [/tex]

First, we need to equal the base power 10 so we can sum both distances:

[tex]2.25 \cdot 10^{8} = 2.25 \cdot 10^{7} \times 10 = 22.5 \cdot 10^{7} km[/tex]      

Now, average distance:

[tex]d_{t} = 2.5 \cdot 10^{7} + 22.5 \cdot 10^{7} = (2.5 + 22.5) \cdot 10^{7} = 25 \cdot 10^{7} km = 2.5 \cdot 10^{8} km[/tex]

Therefore, the average distance from venus to mars is 2.5x10⁸ kilometers.

I hope it helps you!              

Sabrina babysits for young kids in her neighborhood. Last Friday night, she babysat one child for 2 hours and made $16. Tonight, she babysat one child for 6.5 hours and made $34. Determine and interpret the rate of change and initial value.

Answers

It increased by 95%?

Dana is creating a video. Her computer shows that the video is 265.038 seconds long. She writes the length of the video in expanded form. Which expression represents the value of one of the digits in the length of Dana's video?

Answers

Options aren't supplied. However, a list of possible answers have been worked out.

Answer:

Kindly check explanation

Step-by-step explanation:

In expanded format :

256.038 can be broken down as :

2 represents 200 ; 2 hundred = 2 * 100

5 represents 5 tens = 50 = 5 * 10

6 represents 6 unit = 6 * 1

0 represents 0 tenths

3 represents 3 hundredths = 3 * 1/100

8 represents 8 thousandths = 8 * 1/1000

The options aren't given, but the answer would be among the values listed above

Easy math please help!!

James is making orange juice from concentrated frozen orange juice that he must mix with water. The concentrated juice is in 12 fluid ounce cartons. The ratio of orange juice concentrate to water is 12 fluid ounces to 36 fluid ounces. If James needs 4.5 gallons of orange juice, which is 576 fluid ounces, how many cartons of concentrated orange juice does he need? (Your answer should just be a number.)

Answers

Answer:

48

Step-by-step explanation:

A culture started with 1,000 bacteria. After 7 hours, it grew to 1,200 bacteria. Predict how many bacteria will be present after 14 hours. round your answer to the nearest whole number.
Note: When solving for k, round to four decimal places

Answers

Answer:

1400

Step-by-step explanation:

I took the Application

Suppose Nicole ran 12 miles in four days. If she ran the same distance d each
day, how many miles did she run in one day?

Answers

Answer:

3 miles

Step-by-step explanation:

Since she ran 12 miles in 4 days, and all of them were equal, divide 12 by 4. Answer is 3 ^^

Every day, Jackie practices basketball and guitar. Each day,
she practices basketball for 1.5 hours. If after 6 days she
practiced both basketball and guitar for a total of 21
hours, how many hours per day did Jackie practice guitar?

Answers

i think the answer is 8. not completely sure tho

Round your answer to the nearest hundredth

Answers

Answer:

2.30

Step-by-step explanation:

sin=opposite/hypotenuse

sin50=BC/3

BC=3sin50

BC=2.298≈2.30

The box plot below represents some data set. What percentage of the data values are between 20 and 55?​

Answers

Step-by-step explanation:

the solution is self explanatory


Can someone help on this?

Answers

It is d hope that helps!

Answer:

D

Step-by-step explanation:

p(x, y) reflection on y axis = p'(-x, y)

???????????????….?????…..?????????

Answers

Answer:

C

Step-by-step explanation:

Sine equals opposite over hypotenuse, which would be y/19. To find y multiply by 19 to get y=19sin33°

Correct answer: 19cos33°

The values given are 19 (hypotenuse), y (adjacent side), and the angle (33°)

The formula for cosine is adjacent side divided by the hypotenuse

After plugging in the values given into the formula cosx=ad/h, we have:

Cos33°=y/19 Here, we need to isolate the Y

And, the final result is
19Cos33°= Y

So, the correct answer is the letter D

A farmer has 1235 trees to be planted on a rectangular parcel of land. if there are 24 trees planted in each row and each row must be completed before it is planted, how many trees will be leftover planting?
a. 0
b. 11
c. 55
d. 21

Answers

Answer:

c?

Step-by-step explanation:

It's the closest number to 51.

1245/24

Find the area of a circle with radius, r = 5.78m.
Give your answer rounded to 2 DP.​

Answers

Answer:

104.96

Step-by-step explanation:

Hope this helps :)

Simplify: 8 + 14 – 5 - 7 + 3 - 7 - 4

Answers

Answer:

2

Step-by-step explanation:

Answer:

[tex]2[/tex]

Step-by-step explanation:

[tex]8+14-5-7+3-7-4[/tex]

We'll Follow the PEMDAS order of operations:-

Add and subtract:-

8+14=22

[tex]22-5-7+3-7-4[/tex]

22-5=17

[tex]17-7+3-7-4[/tex]

17-7=10

[tex]10+3-7-4[/tex]

10+3=13

[tex]13-7-4[/tex]

13-7=6

[tex]6-4[/tex]

[tex]2[/tex]

OAmalOHopeO

Margaret is going on vacation to Alaska. She has 13 sweaters and needs to choose 6 to take with her on vacation. How many ways can she choose the 6 sweaters to take? Question 7 options: 1,716 1,235,520 78 575

Answers

Answer:

1,716

Step-by-step explanation:

I just took the quiz.

Please answer this math question for me

Answers

Answer:

Hello! answer: e = 103 f = 77

and I don't really know what d is sorry! but If I had to guess id say 90

20 points! pls helppppp it's almost recognition day for me!!

I'm sorry but i'm bad at math ;-;

using the given figures, find the values of the unknown variables

(PROVING ISOSCELES TRAPEZOID)​

Answers

1. x = 21, y = 103
2. x = 32, y = 52
3. x = 4, y = 5
assuming that all the shapes are regular

Using the Pythagorean theorem what is the distance between (5,-3) and (9,1)

Answers

Step-by-step explanation:

Distance between (5,-3) and (9,1)=√(9-5)^2+(1-(-3))^2

=√4^2+4^2

=√16+16

=√32 units

It's not possible to calculate the distance between these points by pythagoras theorem .We can easily calculate it by distance formula I.e.√(x2-x1)^2+(y2-y2)^2

Which pair of angles must be supplementary?
A. <1 and <5
B. <5 and <3
C. <4 and <5
D. <4 and <1

Answers

Answer:

I think C but I could be wrong

Step-by-step explanation:

Solve plz
500 - 2.23

Answers

Answer:

497.8

Step-by-step explanation:

500-2.23=497.77=497.8

Answer:

500-2.23500-2.23497.77

hope it helps

stay safe healthy and happy.
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