2 years ago

Will give brainliest answer

Mathematics

2 answers:

frutty [35]2 years ago

8 0

B, A

random text so that it would let me send.

noname [10]2 years ago

3 0

Answer:

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A sound wave is traveling at 6,420m/s and has a frequency of 600Hz. What is the wavelength?

GaryK [48]

Answer:

10.7 m

Step-by-step explanation:

Given that,

The speed of a sound wave, v = 6,420 m/s

The frequency of the wave, f = 600 Hz

We need to find the wavelength of the wave. We can find it using the below relation as follows :

$v=f\lambda\\\\\lambda=\dfrac{v}{f}\\\\\lambda=\dfrac{6420}{600}\\\\\lambda=10.7\ m$

So, the wavelength of the sound wave is equal to 10.7 m.

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3 years ago

Given the following system of equations:

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Answer: Divide the first equation, −4x + 8y = 16, by 2

Step-by-step explanation:

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3 years ago

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inn [45]

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if I am right mark it as brianliest

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1 year ago

3 (x - 3) + x (r + 4)

docker41 [41]

Answer:

Step-by-step explanation:

3(x-3)+x(r+4)

3x-9+xr+4x

7x+9+xr

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2 years ago

What is 142% of 469?

arsen [322]

$\begin{array}{ccc}100\%&-&469\\\\142\%&-&x\end{array}\\\\\\cross\ multiply\\\\100x=142\times469\\\\100x=66598\ \ \ \ |divide\ both\ sides\ by\ 100\\\\\boxed{x=665.98}$

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2 years ago

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