Use the diagram to solve for x.

The frequency of A4 is 440.00 Hz. what is the frequency of A6, which is two octaves above A4?

zhannawk [14.2K]

To solve this problem you must apply the proccedure shown below:

1. You have the following information given in the problem above: The frequency of A4 is 440.00 Hz.

2. So, you must apply the following formula to calculate the frequency of A6, which is two octaves above:

(2^n)f

Where n is the octaves above and f is the known frequency.

3. Therefore, you have:

A6=(2^n)f
A6=(2^2)(440.00 Hz)
A6=1760 Hz

Therefore, the answer is: A6=1760 Hz.

5 0

3 years ago

Read 2 more answers

20. Carmen can buy bottles of paint for $2.00 each and boxes of colored pencils for $3.50 each. She can spend no more than

EleoNora [17]

Answer:

(a) The equality that express many bottles of paint, x, and boxes of colored pencils, y, Carmen can buy is 2 x + 3.5 y = 42

b)Three different solutions:

x = 14, y = 4 is First Solution.

x = 7, y = 8 is Second Solution.

x = 21, y = 0 is Third Solution.

Step-by-step explanation:

Here, the cost of 1 bottle of paint = $2.00 each

The cost of 1 box of colored pencils = $3.5 each

Let us assume the number of bottle of paints purchased = x

So, the cost of x bottle of paints = x ( Cost of 1 bottle of paint)

= x ($2.00) = 2 x

Also, assume the number of box of colored pencils purchased = y

So, the cost of y box of colored pencils = y ( Cost of 1 box)

= y ($3.50) = 3.5 y

Also, the total amount to be spent on art supplies = $42

So, the total amount spent on x paint bottles + y box of colored pencil

= $42

or, 2 x + 3.5 y = 42

a ) So, the equality that express many bottles of paint, x, and boxes of colored pencils, y, Carmen can buy is 2 x + 3.5 y = 42

b)Three different solutions:

When y = 4 , equation is: 2 x + 3.5(4) = 42

or, 2 x = 42 - 14 = 28, or x = 28/2 = 14

So, x = 14, y = 4 is First Solution.

When y = 8 , equation is: 2 x + 3.5(8) = 42

or, 2 x = 42 - 28 = 14, or x = 14/2 = 7

So, x = 7, y = 8 is Second Solution.

When y = 0 , equation is: 2 x + 3.5(0) = 42

or, 2 x = 42 , or x = 42/2 = 21

So, x = 21, y = 0 is Third Solution.

7 0

3 years ago

What is the maxium number of right angles that can be contained in a triangle

alekssr [168]

Answer:

1

Step-by-step explanation:

A triangle can only have one right angle.

3 0

1 year ago

I need to know what 11, 14, and 15 are I don't remember how to do it

almond37 [142]

When you reflect a function in the x-axis, the first coordinate of a point stays the same, and the second coordinate changes sign (what was positive is now negative and vice versa). See the attached picture.

Question 11: f(x) = -5x + 2. The function changes to its opposite, so g(x) = -(-5x + 2) = 5x - 2.

When you reflect a function in the y-axis, the first coordinate of a point changes to its opposite, but the second coordinate stays the same. Replace x with -x .

Question 14: f(x) = |2x - 1| + 3. Replacing x with -x produces g(x) = |2(-x) - 1| + 3 which simplifies to g(x) = |-2x -1| + 3.

Question 15 works the same way as #14.

6 0

2 years ago

Joe read 140 pages of his 300 page book what percent of his book has he read

kaheart [24]

Answer:

47

Step-by-step explanation:

8 0

3 years ago