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3 years ago

How does energy travel in a mechanical wave?

Mathematics

2 answers:

defon3 years ago

6 0

In a medium would be the answer

Rom4ik [11]3 years ago

3 0

Answer:

The answer is In a medium

Step-by-step explanation:

Mechanical waves are waves that require a medium in which to travel, this involves a transfer of kinetic energy from one place to another in the material.

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Javier asks his mother how old a tree in their yard is. His mother says, “The sum of 10 and two-thirds of that tree’s age, in ye

sdas [7]

Answer:

$10 + (\frac{2}{3}) a = 50$ is the CORRECT equation.

Step-by-step explanation:

The given question is INCOMPLETE.

Javier asks his mother how old a tree in their yard is. His mother says, “The sum of 10 and two-thirds of that tree’s age, in years, is equal to 50.” Javier writes the equation { 10 + 2/3} where a is the tree’s age in years. His equation is not correct. What error did he make?

Now here:

a: The tree’s age in years.

Also, “The sum of 10 and two-thirds of that tree’s age, in years, is equal to 50.”

⇒ 10 + two-thirds of that tree’s age = 50

$\implies 10 + (\frac{2}{3}) a = 50$

But in the equation written by Javier, the the third fraction is NOT MULTIPLIED by the age of the tree a in Years.

So, the written equation by Javier is Incorrect.

Now, solving the written correct equation for the value of a, we get:

$\implies 10 + (\frac{2}{3}) a = 50\\\implies (\frac{2}{3}) a = 40\\\implies a = 40 \times (\frac{3}{2}) = 60\\\implies a = 60$

Hence the correct age of the tree = 60 years

5 0

4 years ago

Polygon ABCDEF is translated 12 units to the left to create polygon A′B′C′D′E′F′. If DE = 7 units, what is D′E′ ?

gizmo_the_mogwai [7]

A translation is a rigid transformation, which means angle measures and distances from two points do not change.
Polygon ABCDEF is congruent to polygon A'B'C'D'E'F'

DE = D'E' = 7

8 0

3 years ago

Read 2 more answers

Now, Use this graph to answer the next 3 questions.

Jet001 [13]

1. A
2. D
not so sure about the last one

3 0

3 years ago

C=(7,-4) and D= (-8,5) CD=?

prisoha [69]

Answer:

Step-by-step explanation:

$x_{1}=7 \ ; y_{1} = -4\\\\x_{2} = -8 \ ; y_{2}=5\\\\CD = \sqrt{(-8-7)^{2}+(5-[-4])^{2}}\\\\=\sqrt{(-15)^{2}+(5+4)^{2}}\\\\=\sqrt{225+(9)^{2}}\\\\=\sqrt{225+81}\\\\=\sqrt{306}\\\\=\sqrt{3*3*2*17}\\\\=3\sqrt{34}$

Distance = $\sqrt{(x_{2}-x_{1})^{2}-(y_{2}-y_{1})^{2}}$

3 0

3 years ago

Plzzzz help me I need help with 10!!!!

Salsk061 [2.6K]

4-0. 4. 1
------- = ---- = --
2-0. 2 2

3 0

3 years ago