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igomit [66]
3 years ago
10

Which speed is at the sound barrier plz tell meh will mark brainless

Mathematics
2 answers:
vovangra [49]3 years ago
7 0

Answer:

<em>343 metres per second </em>

<em>In dry air at 20 °C (68 °F), the speed of sound is 343 metres per second (about 767 mph, 1234 km/h or 1,125 ft/s).</em>

<em></em>

strojnjashka [21]3 years ago
7 0

Answer:

your answer is 343 mps. THIS IS 100% THE CORRECT ANSWER!

hope I helped! :)

Step-by-step explanation:

I got it correct on my quiz

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30 POINTS + BRAINLIEST TO FIRST CORRECT ANSWER!
Vinvika [58]

Answer:

The length will be multiplied by 2.

Step-by-step explanation:

By looking at the first and third ratio, we know that the no. of birck have been multiplied by 2 and the length has also been multiplied by 2 .

So when the number of bricks is multiplied by 2, the length is multiplied by 2

7 0
3 years ago
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Help totally lost plz help due today
ch4aika [34]

Answer:

  5.  1

  6.  Kari is not correct.

Step-by-step explanation:

5. All like terms can be combined. There will be one term remaining after they are.

___

6. The appropriate factoring is x(x+1). This is not the same as x(2x+1).

In order to show equivalence, you need to show that the expressions produce the same result for as many different values of x as the degree of the expression plus 1. That is, you'd need to show equivalence for <em>3 different values of x</em>, as a minimum for this second-degree expression.

6 0
3 years ago
Plz help last one ty!!!!!!!
azamat

My apologies on answering late...

Same situation as the previous problem, but this time, all you need to do is state the degree of the angle instead of just providing the angle itself.


ΔABC ≅ ΔDEF

Now, we can see that ∠C ≅ ∠F. Using this information, we can find ∠C on the first triangle ( which is 75° ).

Since ∠C ≅ ∠F,

m∠F is 75°.


Hope I caught your question in time!

Have a good one! If you need anymore help, let me know.

4 0
3 years ago
5n + 34 = -2(1 - 7n) what is the solution to this question
Temka [501]
5n + 34 = -2(1 - 7n)

5n + 34 = -2 + 14n
5n = -36 + 14n
-9n = -36
9n = 36
n = 4
7 0
3 years ago
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Round 235,674 to the nearest thousand​
Elina [12.6K]

Answer:

236,000

Step-by-step explanation:

When rounding to thousands, if the hundred is 500 or over, you round up. If it is less, round down.

4 0
3 years ago
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