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andreyandreev [35.5K]
3 years ago
7

Please ASAP. Find the value of x?

Mathematics
2 answers:
Evgesh-ka [11]3 years ago
6 0

Answer:

x = 14

Step-by-step explanation:

Since it's a parallelogram that means x+3= 17.

Subtract 17 by 3 to get x alone that will give you x = 14

shutvik [7]3 years ago
6 0

Answer:

x = 14

Step-by-step explanation:

This quadrilateral is a parallelogram. Due to this, opposite sides are congruent. One side is 17, that means the opposite side is 17. We can write this as the equation

x + 3 = 17.

If we subtract 3 from both sides, we isolate the variable x.

x = 14.

Therefore, x = 14

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The sound wave with a <u>frequency of 20</u> waves/sec is 800 longer than the wavelength of a sound wave with a <u>frequency of 16,000</u> waves/sec

<h3>Calculating wavelength </h3>

From the question, we are to determine how many times longer is the first sound wave compared to the second sound water

Using the formula,

v = fλ

∴ λ = v/f

Where v is the velocity

f is the frequency

and λ is the wavelength

For the first wave

f = 20 waves/sec

Then,

λ₁ = v/20

For the second wave

f = 16,000 waves/sec

λ₂ = v/16000

Then,

The factor by which the first sound wave is longer than the second sound wave is

λ₁/ λ₂ = (v/20) ÷( v/16000)

= (v/20) × 16000/v)

= 16000/20

= 800

Hence, the sound wave with a <u>frequency of 20</u> waves/sec is 800 longer than the wavelength of a sound wave with a <u>frequency of 16,000</u> waves/sec

Learn more on Calculating wavelength here: brainly.com/question/16396485

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1 year ago
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