3 years ago

Use the order of operations to solve the problem. 3 x 2 + 7

Mathematics

1 answer:

IceJOKER [234]3 years ago

4 0

Answer:

Step-by-step explanation:

3 x 2 + 7

6 + 7 (Do multiplication first)

13 (Then add from left to right)

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Answer:

<u>262,144</u> goes in the blank

Step-by-step explanation:

8^6 = 262,144

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2 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

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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

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= 150.51 dB

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3 years ago

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Answer:

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Step-by-step explanation:

fingers crossed this is right

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3 years ago

Use the order of operations to solve the problem. 3 x 2 + 7​

Use the order of operations to solve the problem. 3 x 2 + 7