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4 years ago

Solve for x and y. A. x=24, y=8√3 B. x=8, y=24√3 C. x=24√3, y=8 D. x=8√3, y=24

Mathematics

2 answers:

Alex Ar [27]4 years ago

6 0

I think is D hope it is correct

lana [24]4 years ago

3 0

Answer:

the answer is a

Step-by-step explanation:

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Answer:

50:39

Step-by-step explanation:

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3 years ago

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Step-by-step explanation:

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3 years ago

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3 years ago

One of the loudest sounds in recent history was that made by the explosion of Krakatoa on August 26-27, 1883. According to barom

liraira [26]

Answer:

150.51 dB

Step-by-step explanation:

Data provided in the question:

decibel level of sound at 161 km distance = 180 dB

d₁ = 161 km

d₂ = 4800 km

I₁ = 180 db

The formula for intensity of sound is given as:

I = $10\log(\frac{I_2}{I_1})$

and the relation between intensity and distance is given as:

I ∝ $\frac{1}{d^2}$

Id² = constant

thus,

I₁d₁² = I₂d₂²

$\frac{I_2}{I_1}=\frac{d_1}{d_2}$

therefore,

I = $10\log(\frac{d_1}{d_2})^2$

I = $10\times2\times\log(\frac{161}{4,800})$

I = 20 × (-1.474)

I = -29.49

Therefore,

the decibel level on Rodriguez Island, 4,800 km away

= 180 - 29.49

= 150.51 dB

8 0

3 years ago