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Alina [70]
3 years ago
9

1. What is the wave speed of a wave that has a frequency of 100 Hz and a wavelength of 0.30 m? (please show work that I can unde

rstand lol )
Mathematics
2 answers:
liraira [26]3 years ago
6 0

Hi there!

• Wavelength, λ = 0.30
• Frequency, ν = 100 Hz

Accr'ding to the question :-

Wave Speed = Frequency (Hz) × Wavelength (m)

= 100 Hz × 0.30 m

= 30 Hz¹m¹

Hence,
The required answer is 30 Hz¹m¹.

~ Hope it helps!
Dovator [93]3 years ago
4 0
Your answer is 30 m/s.

To find the wave speed multiply the frequency by the wavelength.
100*0.30
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Please explain how to solve this word problem
Mariana [72]

3*16-2*4=48-8=40 Try this, its my only guess :(

8 0
3 years ago
What are the roots of f(x) = x2 – 48? –48 and 48 –24 and 24 Negative 8 StartRoot 3 EndRoot and 8 StartRoot 3 EndRoot Negative 4
Ivanshal [37]

Answer:

x=4\sqrt{3},\:x=-4\sqrt{3} are the roots.

Step-by-step explanation:

x=4\sqrt{3},\:x=-4\sqrt{3}

Considering the expression

x^2\:-\:48

Solving

x^2-48=0

x^2-48+48=0+48

x^2=48

\mathrm{For\:}x^2=f\left(a\right)\mathrm{\:the\:solutions\:are\:}x=\sqrt{f\left(a\right)},\:\:-\sqrt{f\left(a\right)}

x=\sqrt{48},\:x=-\sqrt{48}

Solving

x=\sqrt{48}

  = \sqrt{2^4\cdot \:3}

  \mathrm{Apply\:radical\:rule}:\quad \sqrt[n]{ab}=\sqrt[n]{a}\sqrt[n]{b}

  = \sqrt{3}\sqrt{2^4}

  \mathrm{Apply\:radical\:rule}:\quad \sqrt[n]{a^m}=a^{\frac{m}{n}}

  \sqrt{2^4}=2^{\frac{4}{2}}=2^2

  =2^2\sqrt{3}

  =4\sqrt{3}

So,

x=4\sqrt{3}

Similarly,

x=-\sqrt{48}=-4\sqrt{3}

Therefore, x=4\sqrt{3},\:x=-4\sqrt{3} are the roots.

Keywords: roots, expression

Learn more about roots from brainly.com/question/3731376

#learnwithBrainly

9 0
2 years ago
Read 2 more answers
There are 7 ushers and 11 technicians helping at the Harper Middle School fall play.
bearhunter [10]

Answer:

<h3>The ratio of technicians to all helpers  is 11 : 7, or \frac{11}{7} or 11 to 7.</h3>

Step-by-step explanation:

  • Given that there are 7 ushers and 11 technicians helping at the Harper Middle School fall play.
  • Let x be the number of ushers ( or helpers ).
  • Therefore x=7 helpers.
  • Let y be the number of technicians.
  • Therefore y=11 technicians.
<h3>To find the ratio of technicians to all helpers :</h3>

That is to find the ratio of y to x.

We can write the ratio of technicians to all ushers(helpers) as y : x

Which implies that 11 : 7,  (since y=11 and x=7)

Or \frac{11}{7} or 11 to 7

<h3>The ratio of technicians to all helpers  is 11 : 7, or \frac{11}{7} or 11 to 7</h3>
4 0
3 years ago
Rewrite as a simplefied fraction
9966 [12]
Answer:
79/25

Work:

Firstly, you have to change the decimal portion of 3.16 (0.16) into a fraction, then you simplify it by a common factor, which is 4. You then convert your whole number, which is 3, into an improper fraction by multiplying it by 25 and making that the numerator, 25 being the denominator of the fraction. Then, you add the two fractions and voila! You have a simplified fraction!

0.16 = 16/100

16/100 = 4/25

3 x 25 = 75

75/25 + 4/25 = 79/25
3 0
3 years ago
PLS HELP ASAP ILL GIVE BRAINLKEST THANKS
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Answer:

D. (6,3)

Step-by-step explanation:

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The formula for point-slope form is y=mx+b

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Since we already know the slope we can just replace it:

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Now we need to find the y-intercept

We can do this by distributing them with (4,2)

As you remember in point the digits are in x and y

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Now we can substitute x with 4 and y with 2

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Multiply 1/2 and 4

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Thus b=0

So the slope intercept form is y=1/2x

Now we can substitute the other points:

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Which is

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Which is incorrect since 4 does not equal 3/2

For (6,3)

3=1/2(6)

Which is

3=3

Which is correct since 3 does equal to 3

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2 years ago
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