2. 3/5 f
3. 2/5 f
4. 3/5 + f
The correct expression for the frequency of the lower note when two musical notes are a sixth apart is: 3/5 f
Given that two musical notes are a “sixth” apart, the frequency of the lower note is 3/5 the frequency of the higher note.
We need to determine the expression for the frequency of the lower note.
When two musical notes are a "sixth" apart, it means that there are five whole steps or intervals between the two notes.
In music theory, each whole step corresponds to multiplying the frequency by a constant factor.
If we denote the frequency of the higher note as f, then the frequency of the lower note, which is 3/5 times the frequency of the higher note, can be calculated by multiplying f by 3/5.
Therefore, the correct expression for the frequency of the lower note is 3/5 f.
Learn more about musical notes click;
#SPJ4
Answer:
2. 3/5 f
Step-by-step explanation:
the lower note is the product of it's fractional part and the frequency of the higher note.
If the sum of the first 20 square numbers is 2870 then sum of the first 21 square numbers is 3311.
Sequence is an enumerated collection of objects in which repetitions are allowed and order matters.
The first square number is 1, and the sum of the first 20 square numbers is 2870.
We need to find the sum of the first 21 square numbers.
for first 20 numbers the answer is
n(n+1)(2n+1)/6
20*21*41/6 = 2870
Now we have to find the sum of first 21 square numbers.
21²=441
Now add it with 2870
2870+441=3311
Hence, the sum of the first 21 square numbers is 3311.
To learn more on Sequence click:
#SPJ2
If x represents the number of pieces of fruit Janet ate, then Sylvia ate 2 * (x+4) pieces of fruit based on the given question.
The question requires an algebraic expression to show how many pieces of fruit Sylvia ate. According to the question, Tom ate four more pieces of fruit than Janet. If x is the number of fruits Janet ate, then we can represent the number of fruits Tom ate as x + 4.
Next, the question states that Sylvia ate twice as many pieces of fruit as Tom. So, we can represent the number of pieces of fruit Sylvia ate as 2 * (x+4). Hence, this is the expression that represents the amount of fruit that Sylvia ate.
#SPJ2