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tiny-mole [99]
3 years ago
8

How many decibels is this? show work​

Mathematics
1 answer:
slavikrds [6]3 years ago
4 0

Answer:

  • <u>115 dB</u>

Explanation:

<u>1. Given equation:</u>

\beta =10log(\frac{I}{I_0})\\\\ I_0=10^{-12}W/m^2

<u>2. Given intensity:</u>

I=0.315W/m^2

<u>3. Decibels</u>

\beta =10log(0.315/10^{-12})\\ \\ \beta =10log(315,000,000,000)\\ \\ \beta =10(11.498)=114.98\approx 115

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Find the sizes of unknow angles of this triangle​
Volgvan
<h2><u>Answer:</u></h2>

To determine to measure of the unknown angle, be sure to use the total sum of 180°. If two angles are given, add them together and then subtract from 180°. If two angles are the same and unknown, subtract the known angle from 180° and then divide by 2.

4 0
2 years ago
Freddy went to the museum and bought a reduced copy of a painting he saw in a exhibit. If the actual painting is 12 inches high,
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Answer:

It is probably 6 inches wide. I tried my best

Step-by-step explanation:

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3 years ago
What is the area of a circle. Using 3.14 for. A circle with diameter of 8.4 ft.
ira [324]

Hey there! I'm happy to help!

First, let's find the radius. The radius is half of the diameter.

8.4/2=4.2

Here's how to find the area of a circle.

Square the radius.

4.2²=17.64

And multiply by pi (3.14 in our case)

17.64(3.14)=55.3896

We round to the nearest tenth, giving us an area of 55.4 ft²

Have a wonderful day! :D

5 0
3 years ago
Write the following equation in standard form: x^5 + 2x^3 +6x + 1/5
Stella [2.4K]
Or use photomath, it is also useful!
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3 years ago
Correctly order the following numbers from LEAST to GREATEST:
ivanzaharov [21]

- 7 1/5 <  - 2.3 < 0 < π  < 23/7 is ascending order of these numbers.

What do descending order and ascending order mean?

  • Climbing down the stairs of numbers starting with their highest value is another way to think of descending.
  • The slide is descended while moving down it.
  • Ascending order, in which the numbers are organized from lower value to higher value, is the reverse of falling order.

The values are 0 , -2.3 , π , 23/7 , -71/5

first simplify all the values  0 , - 2.3 , 3.14 , 3.28 , -7.2

now arrange all value in Ascending order

 - 7.2 < -2.3 < 0 < 3.14 < 3.28

- 7 1/5 <  - 2.3 < 0 < π  < 23/7

Learn more about Ascending order

brainly.com/question/20681445

#SPJ1

5 0
1 year ago
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