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azamat
3 years ago
14

A note has a wavelength of 0.77955 m. If the speed of sound is 343.00 m/s, what pitch is this note?

Mathematics
1 answer:
andrezito [222]3 years ago
3 0

Answer:

A note has a wavelength of 0.77955 m. If the speed of sound is 343.00 m/s, what pitch is this note?

f = (343m/s) / 0.77955m = 439.997 0r 440 Hz Pitch is an A.

Step-by-step explanation:

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2. The prices of several different cereals are given below. Find the mean, median, mode, MAD, and IQR of these values. Which mea
Maru [420]

Mean = $ 4. 72

Median = $ 4. 5

Mode = No mode

MAD = $ 4. 8

IQR = $ 0. 5

Measure of center = $ 4. 5

Measure of variability = $ 2. 50

<h3>How to determine the values</h3>

Given the data;

$3.50, $4.25, $6, $4.75, $5.80, $4

Mean = sum of data/ number of data values

Mean = \frac{3. 50 + 4. 25 + 6 + 4. 75 + 5. 80 + 4}{6}

Mean = $ 4. 72

Median is the number in the center when the data is arranged in an ascending order

$3. 50, $4, $4. 25, $4. 75, $5. 80, $6

Median = \frac{4. 25 + 4. 75}{2}

Median = $ 4. 5

Mode is the number with the highest repeats.

From the given data, none of the numbers was repeated.

Thus, there is no mode.

MAD, mean absolute deviation = |data value - mean|

MAD = |(3. 50 - 4. 72) + (4. 25 - 4. 72) + (6 - 4. 72) + (4. 75 - 4. 72) + (5. 80 - 4.72) + (4- 4. 72) |

MAD = 1. 22 + 0. 47 + 1. 28 + 0. 03 + 1. 08 + 0. 72

MAD = $ 4. 8

IQR, interquartile range = Quartile 3 - quartile 1

IQR = 4. 75 - 4. 25

IQR = $0. 5

Note that  the mean and median are the most common measures of center.

A measure of variability is a single number that is  used to describe the spread of a data set

The measure of the center best for the data is the median = $4. 5

Measure of variability = range = highest value - lowest value = $6 - $3. 50 = $2. 50

Learn more about mean here:

brainly.com/question/20118982

#SPJ1

5 0
2 years ago
Gabby is packing for her family's vacation. She has 5 tops, 3 bottoms, and 2 pairs of shoes. Assuming she wears a top, bottom, a
Doss [256]

Answer:

30

Step-by-step explanation:

4 0
3 years ago
tanya has 3 red marbles 7 blue marbles and 9 green marbles what expression can be used to to find the percent of tanyas marbles
stepladder [879]

Answer: 3+7+9=19.....7/19=0.368 percent. Move the decimal two places to the right and round up for 37%

Step-by-step explanation:

Add all the colors together to get a TOTAL amount of ALL marbles.

The total amount for this problem is 19 (3+7+9=19)

The blue amount of marbles is given as 7.

Divide the blue amount (7) by the total amount (19) for the specific percentage for that color.

6 0
3 years ago
Please i need an answer right now
AVprozaik [17]

Answer:

let the number of meals = m

  1. Then price ,P = 75m
  2. dependent variable = P
  3. independent variables = m
  4. P = 75*12 =900
  5. m = 2000÷ 75 = max 26 meals

mark me as brainliest ❤️

5 0
3 years ago
Carlos earns $11 per hour at his job. Let z represent the number of hours he worked in May. Let y represent
allochka39001 [22]

Answer: 11z + 11y

Step-by-step explanation:

Carlos earns his pay by the hour. That means that to find the cash made in a given month, the formula is:

= Carlos payment per hour * Number of hours worked in a month

In May he worked z hours:

He earns $11 per hour and works z hours, expression for earnings for the month is:

= 11 * z

= 11z

In June he worked y hours:

= 11 * y

= 11y

The total he earned in both May and June is:

= 11z + 11y

7 0
3 years ago
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