3 years ago

Which number property supports your answer

Mathematics

1 answer:

lys-0071 [83]3 years ago

5 0

What is the question

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The intensity, or loudness, of a sound can be measured in decibels (dB), according to the equation I(dB)=10log[1/10], where I &a

Alexandra [31]

For this case we have the following equation:
$I(dB)= 10log(\frac{I}{I0})$
Where,
I: the intensity of a given sound
I0: the threshold of a hearing intensity
Substituting values in the given equation we have:
 $I(dB)= 10log(\frac{10^8I0}{I0})$
Rewriting the equation we have:
 $I(dB)= 10log(10^8)$
Then, by properties of logarithm we have:
 $I(dB)= 10(8)$
Finally we have:
 $I(dB)=80$
Answer:
The intensity, in decibles, [I(dB)], when I=10^8(I0) is:
D.80

8 0

4 years ago

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HELP DUE IN 10 MINS!

DIA [1.3K]

Answer:

9. not all of them are, so false

10. true

Step-by-step explanation:

3 0

3 years ago

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The number 0.4 can written as 4/10, so it is a rational number

Dima020 [189]

True

An easy way to tell if a number is irrational if you cannot count it, or convert it into a decimal/fraction.

Such as pie, square root of 11, etc.

4 0

3 years ago

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Consider that lines u and v are parallel. Which equation models the relationship between the angles? What is the value of x? A)

anastassius [24]

Sent a picture of the solution to the problem (s).

5 0

3 years ago

Simplify m²n+3xy-nm²-yx

vlabodo [156]

Answer:
2xy

Explanation:
m^2n+3xy-nm^2-yx
Rewrite nm^2 as m^2n
=m^2n+3xy-m^2n-yx
Rewrite yx as xy
=m^2n+3xy-m^2n-xy
=3xy-xy
=2xy

I hope this helps!

5 0

3 years ago