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ss7ja [257]
3 years ago
13

Which statement about sound is true because it is a mechanical wave?

Mathematics
2 answers:
PtichkaEL [24]3 years ago
5 0

Answer: It must travel through a medium.

Step-by-step explanation:

A sound wave transports its energy by means of particle interaction. A sound wave cannot travel through a vacuum. This makes sound a mechanical wave.

maw [93]3 years ago
4 0

Answer:

It must travel through a medium

Step-by-step explanation: Because I said so >:(

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What is the value of x
Nesterboy [21]

Answer:

x = 2

Step-by-step explanation:

First simplify the equation.

  1. \frac{7}{9}x -\frac{4}{9} =\frac{1}{4} +\frac{5}{12}
  2. \frac{3}{9}x= \frac{3}{12} +\frac{5}{12}
  3. \frac{3}{9}x=\frac{8}{12}
  4. \frac{1}{3}x=\frac{2}{3}

Now multiply both sides by 3.

x = 2

I hope it helps you. Please choose my answer as the BRAINLIEST.

7 0
3 years ago
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Write an explicit formula for an, the nth term of the sequence 33, 30, 27
lawyer [7]

Answer:

<u>aₙ = aₙ₋₁ - 3</u>

Step-by-step explanation:

Given :

First term : <u>33</u>

Common difference = 30 - 33 = <u>-3</u>

<u />

============================================================

Then the formula will be :

<u>aₙ = aₙ₋₁ - 3</u>

8 0
2 years ago
in Mr. whiteners class,7 out 35 students olay middle school basketball .what percent of studwnts in mr. Whitener's class play mi
MaRussiya [10]

Answer:

20%

Step-by-step explanation:

It would be 20% because 35/7 is 5 and 5 goes into 100% 20 times.

5 0
3 years ago
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In constructing a box-and-whisker plot from a data set, which values are at the ends of the box?
I am Lyosha [343]

Answer:  In constructing a box-and-whisker plot from a data set,  the minimum and maximum values are at the ends of the box.


Step-by-step explanation:

A box and whisker plot displays the five measures of data. The five measures summary is the minimum, first quartile, median, third quartile, and maximum. In a box plot, we draw a box from the first quartile to the third quartile.

Therefore, In constructing a box-and-whisker plot from a data set,  the minimum and maximum values are at the ends of the box.

Hence, A is the right option,

8 0
3 years ago
What is the answer to -3x - 6+ (-1)​
IrinaK [193]

Answer:

-3x-7

Step-by-step explanation:

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