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Lyrx [107]
3 years ago
6

What is the wavelength of an earthquake wave if it has a speed of 10 km/s and a frequency of 4 Hz?

Mathematics
1 answer:
Natasha2012 [34]3 years ago
7 0

Hey there!!

Always remember -

wave length = velocity / frequency

Now substitute the values

Wave length = 10 / 4

Wave Length = 2.5 m


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Please help! I'm stuck:(
irina [24]

Answer:

1st graph is Y=1x+0

2nd Graph is Y=-2/1x + 0

Step-by-step explanation:

Your slope is 1 for the 1st graph

Your slope is -2/1 for the second graph

3 0
3 years ago
Y^2 - 12y + 27 / y^2 - 6y - 27 <br> simply the rational equation.
Ulleksa [173]

The simplified rational expression is (y - 3)/(y + 3). Where y ≠ -3.

<h3>How to simplify a rational expression?</h3>

A rational expression is in the p/q form. Where p and q are polynomial functions.

To simplify this rational equation,

  • Factorize the polynomials in both numerator and denomiantor.
  • Cancel out common factors if any.
  • If the denominator and the numerator have no common factors except 1, then that is said to be the simplest form of the given rational expression.

<h3>Calculation:</h3>

The given rational equation is

\frac{y^2 - 12y + 27 }{y^2 - 6y - 27}

Factorizing the expression in the numerator:

y² - 12y + 27 = y² - 9y - 3y + 27

⇒ y(y - 9) - 3(y - 9)

⇒ (y - 3)(y - 9)

Factorizing the expression in the denominator:

y² - 6y - 27 = y² - 9y + 3y - 27

⇒ y(y - 9) + 3(y - 9)

⇒ (y + 3)(y - 9)

Since they have (y - 9) as the common factor, we can simplify,

\frac{y^2 - 12y + 27 }{y^2 - 6y - 27}=\frac{(y-3)(y-9)}{(y+3)(y-9)}

⇒ (y - 3)/(y + 3) where y ≠ -3(denomiantor)

Here there are no more common factors except 1; this is the simplest form of the given rational expression.

Learn more about simplifying rational expressions here:

brainly.com/question/1928496

#SPJ9

3 0
1 year ago
Please Solve This For Me If You Can y(2.5+7)+y-2 ​
Law Incorporation [45]

Answer: 10.5y-2

Hope this helps!

4 0
3 years ago
Read 2 more answers
Frank has devised a formula for his catering business that calculates the number of meatballs he needs to prepare.
timofeeve [1]
Just plug in the numbers into the equation.

m = 4a + 2c

a = adults
c = children
m = meatballs

The information given says there are 25 adults and 5 children. So now:

a = 25
and
c = 5
in the equation m = 4a + 2c


Now plug in the values. 
m = 4(25) + 2(5)
m = 100 + 10
m = 110

This means that 110 meatballs are required for 25 adults and 5 children. 
8 0
3 years ago
1)An average American human lives about 78.74 years. A survey gave an average time spent going to the bathroom to be 102 minutes
just olya [345]
1) Americans spend 418,784.358 minutes on the toilet in their life time.

2) 85,096.56 minutes if you are at the age of 16.
7 0
3 years ago
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