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stepladder [879]
2 years ago
12

What is the ratio of the wavelengths of these two notes? a. 5 to 4 b. 3 to 2 c. 6 to 5 d. 2 to 1

Mathematics
1 answer:
Phoenix [80]2 years ago
4 0

The ratio of the wavelengths of the two notes is 2:1 option fourth 2 to 1 is correct.

<h3>What is wavelength?</h3>

The wavelength is the distance between two successive troughs or crests. The highest point on the wave is the crest, while the lowest point is the trough.

We have two notes

Number of cycle for blue = 8

Number of cycle for red = 4

Ratio = 8:4 = 2:1

Or

2 to 1

Thus, the ratio of the wavelengths of the two notes is 2:1 option fourth 2 to 1 is correct.

Learn more about the wavelength here:

brainly.com/question/7143261

#SPJ1

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alfredo bought a fishing pole for 60 off it's original price of $97 if the tax was 4% how much did alfredo pay for the fishing p
Agata [3.3K]

Answer:

$40.4

Step-by-step explanation:

The regular price of the fishing rod is $97

There is a 60% discount from that price.

The discount is equal to 60% of $97 which is equal to .60 * $97 which is equal to $58.2

Discount is like a markdown, so subtract $58.2 from the price of the item before the change to get $97 - $58.2 = $38.8 

This is the price of the item before tax is applied.

Now you apply the sales tax of 4%.

4% of $38.8 is equal to .04 * $38.8 which is equal to $1.552

Tax is like a markup, so add $1.552 to the price of the item before tax was applied to get a selling price of $38.8 + $1.552 which is equal to $40.352

Round it up and the answer is $40.4

3 0
4 years ago
The table shows the heights of 40 students in a class.
Darya [45]

Answer

A. 129.3

B. The students ages can be any number within the ranges, so having the middle number wont represent the other possible heights.

Step by step

'h' is the number between the surrounding number, the first would be 122.

You need to multiply the hight by frequency of each one,

122x7 =854

126x8=1008

130x13=1690

134x9=1206

138x3=414

Add them up = 5172

5172/40 =129.3

4 0
3 years ago
You have to be 21 or under in order to play Junior Hockey. a) Write an inequality to describe the situation. b) Graph the inequa
amm1812

Answer:i thing it is b if im wrong sorry

Step-by-step explanation:

3 0
3 years ago
Helps help me I don’t understand
olganol [36]
Your answer would be 
7 6/12
or it would also be considered 7 1/2

Hope this helps!! :]
7 0
3 years ago
Mark has a postcard with a width of 3 1/3 inches. He wants to enlarge the postcard by a factor of 9 1/2 to make a poster. Which
Anna11 [10]

Answer:

C. The poster will have an width of 31 2/3 inches.

Step-by-step explanation:

3 1/3*9 1/2= 31 2/3 inches

8 0
3 years ago
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