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2 years ago

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

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

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Set up an equation and use it to solve for X (6x + 3) 33°

Elodia [21]

9514 1404 393

Answer:

Step-by-step explanation:

The angles of a linear pair are supplementary.

(6x +3)° +33° = 180°

6x = 144 . . . . . . . . . . . divide by °, subtract 36

x = 24 . . . . . . . . divide by 6

7 0

3 years ago

Four students are running for class president: liz, sam, sue, and tom. the probabilities of sam, sue, and tom winning are 7⁄25 ,

Natali5045456 [20]

First, we need to convert all the fractions to have the same denominator. 10 and 25 are both multiples of 100, so 100 would be appropriate.

Sam has a 7/25 chance. Because we want ?/100, something needs to change. To get from 25 to 100, you need to times 25 by 4, right? So, do the same with the 7.
7 x 4 = 28. Therefore Sam has a 28/100 chance.

Sue has 3/10. Using the same method, we can see that 3 needs to be multiplied by 10 (because 10 times 10 = 100). So Sue has a 30/100 chance.

Tom is already in the fraction we like, so just keep this as 21/100.

Now, add 28/100, 30/100 and 21/100 to get 79/100.

Because won of them will get the role of class president, we know that the probability adds to 1. To get a full probability (100/100, or 1), what needs to be added to 79/100?

Another way of going about this is 100/100-79/100. The answer is 21/100

The probability of Liz winning is 21/100.

Let me know if this is still unclear, I would be more than happy to explain in more detail if necessary :)

8 0

3 years ago

this table shows input and output values for a linear function f(x). What is the difference of outputs for any two inputs that a

Solnce55 [7]

The answer is 0.5.

X is the input and f(x) is the output. Between -3 and -2 the difference is 0.5. Because it goes from -0.5 to 1

5 0

3 years ago

Read 2 more answers

Factor the expression completely. 625x4 - 256y4

scoundrel [369]

Answer:

(625 • (x4)) - 28y4

54x4 - 28y4 3.1 Factoring: 625x4-256y4

Theory : A difference of two perfect squares, A2 - B2 can be factored into (A+B) • (A-B)

Proof : (A+B) • (A-B) =

A2 - AB + BA - B2 =

A2 - AB + AB - B2 =

A2 - B2Note : AB = BA is the commutative property of multiplication.

Note : - AB + AB equals zero and is therefore eliminated from the expression.

Check : 625 is the square of 25

Check : 256 is the square of 16

Check : x4 is the square of x2

Check : y4 is the square of y2

Factorization is : (25x2 + 16y2) • (25x2 - 16y2) 3.2 Factoring: 25x2 - 16y2

Check : 25 is the square of 5

Check : 16 is the square of 4

Check : x2 is the square of x1

Check : y2 is the square of y1

Factorization is : (5x + 4y) • (5x - 4y)this is the answer: (25x2 + 16y2) •(5x + 4y) • (5x - 4y)

5 0

3 years ago

I need help with this please help asap

kaheart [24]

Step-by-step explanation:

4^5 (-2)^9/4^8 (-2)^3

= 4^(5 - 8) (-2^(9 - 3))

= 4^-3 (-2^6)

= (-2)^6/4^3

1). (-2)^a/4^b

a = 6, b = 3

2). c/d

c = -2, d = 4

6 0

3 years ago