2 years ago

Please help!!! Thank you!

Mathematics

1 answer:

Naya [18.7K]2 years ago

8 0

Answer:

Step-by-step explanation:

y=-2x+3

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Add 799.99 and 679.99 which equals 1479.98
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PLEASE HURRY IM TIMED!!!

andriy [413]

Answer-

A. Brandon’s sound intensity level is 1/4th as compared to Ahmad’s.

Solution-

Given that, loudness measured in dB is

$L=10\log \frac{I}{I_0}$

Where,

I = Sound intensity,

I₀ = 10⁻¹² and is the least intense sound a human ear can hear

Given in the question,

I₁ = Intensity at Brandon's = 10⁻¹⁰

I₂ = Intensity at Ahmad's = 10⁻⁴

Then,

$L_1=10\log \frac{I_1}{I_0}=10\log \frac{10^{-10}}{10^{-12}}=10\log \frac{1}{10^{-2}}=10\log 10^{2}=2\times10\log 10=20$

$L_2=10\log \frac{I_2}{I_0}=10\log \frac{10^{-4}}{10^{-12}}=10\log \frac{1}{10^{-8}}=10\log 10^{8}=8\times10\log 10=80$

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2 years ago

The height of a triangle is 4 m less than its base. The area of the triangle is 48 m^2.

masya89 [10]

Answer:

Step-by-step explanation:

Let x = base measurement; then height = (x-4).

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