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3 years ago

Do waves move matter as they travel?

Mathematics

1 answer:

umka2103 [35]3 years ago

5 0

Answer:

No.

Step-by-step explanation:

Waves are energy moving through the matter, but they leave the matter in the same place as they pass through.

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The length of the side of square A is 50% of the length of the square side expressing the area of the shaded area of square

KonstantinChe [14]

Answer:

Let's call the side of square b x. Therefore, the side of square a is 0.5x, making its area 0.25x² and the area of square b is x². This means that the percentage is 25%.

8 0

3 years ago

NEED HELP ASAPInstructions: Find the length of the missing sides. Round your answers to the

Pie

Answer:

$x = 9.4$

$y = 17.7$

Step-by-step explanation:

Given: The figure

Required: Find x and y

The relationship between length x, length 15 and angle 32 is as follows:

$tan \theta = \frac{opp}{adj}$

So, we have:

$tan\ 32= \frac{x}{15}$

Cross multiply:

$x =15*tan\ 32$

$x = 15 * 0.6248693519$

$x = 9.3730402785$

$x = 9.4$ --- approximated

Similarly:

The relationship between length y, length 15 and angle 32 is as follows:

$cos \theta = \frac{adj}{hyp}$

So, we have:

$cos\ 32= \frac{15}{y}$

Cross Multiply:

$y * cos\ 32= 15$

Solve for y

$y = \frac{15}{cos\ 32}$

$y = \frac{15}{0.84804809615}$

$y = 17.6876760506$

$y = 17.7$ --- approximated

8 0

3 years ago

Is this true or false?

pishuonlain [190]

It is trueee....... hope this helps

8 0

3 years ago

Need help quick please. Find the area of the sector use 3.14 for pi

olga55 [171]

$\textit{area of a sector of a circle}\\\\ A=\cfrac{\theta \pi r^2}{360} ~~ \begin{cases} r=radius\\ \theta =\stackrel{degrees}{angle}\\[-0.5em] \hrulefill\\ r=9\\ \theta =120 \end{cases}\implies \begin{array}{llll} A=\cfrac{(120)\pi (9)^2}{360}\implies A=27\pi \\\\\\ \stackrel{using~\pi =3.14}{A\approx 84.8} \end{array}$

7 0

2 years ago

candace tells you that she bought new boots using a 20% coupon and saved $28.What was the original price of the boots?use a tape

kkurt [141]

Answer:

Step-by-step explanation:

40 x 76 is the equation by 4x4 of 86 and the 36

5 0

3 years ago