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ipn [44]
3 years ago
6

What is the sound intensity of a noise that is 130 dB

Mathematics
2 answers:
ASHA 777 [7]3 years ago
7 0

Answer:

10 watts per squares meter

3241004551 [841]3 years ago
3 0
Answer: When the defining level of 0 decibel (10-12 watt per square metre) is taken to be at the threshold of hearing for a sound wave with a frequency of 1,000 hertz, then 130 decibels (10 watts per square metre) corresponds to the threshold of feeling, or the threshold of pain.


I hope this helps!
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£54,000 split ratio 1:3:8
Scrat [10]
There are 12 parts to the ratio (1 + 3 + 8 = 12).
Divide 54,000 by 12.
54,000/12 = 4,500
Now multiply for each part:
1 = 4,500
3 = 13,500
8 = 36,000

You can check by adding them up (4,500 + 13,500 + 36,000 = 54,000).

So the ratio is 4,500:13,000:36,000

Hope this helps =)
4 0
3 years ago
The graph of an absolute value function opens up and has a vertex of (0, -3).
Anit [1.1K]

Answer:

The domain: all real numbers;

The range:  y\ge -3.

Step-by-step explanation:

The graph of the function y=|x| opens up and has a vertex at (0,0). If the graph of an absolute value function opens up and has a vertex of (0, -3), then the function has an expression

y=|x|-3 (see attached diagram).

The domain of the parent function y=|x| is the set of all real numbers, then the domain of the function y=|x|-3 is the set of all real numbers too.

The range of the parent function y=|x| is y\ge 0, then the range of the function y=|x|-3 is y\ge -3.

4 0
3 years ago
Tiana walks 180 feet per minute. How many feet per second does she walk?
Afina-wow [57]

Answer:

3 feet per second

Step-by-step explanation:

180 divided by 60=3

8 0
3 years ago
Read 2 more answers
Please answer !!!!!!!
Akimi4 [234]

The measure of all the angles is given below:

angle 1= 30

angle 2=  150

angle 3= 30

angle 4= 150

angle 5= 30

angle 6= 150

angle 7= 30

angle 8= 73.5

<h3>What is angle?</h3>

An angle is formed when two straight lines or rays meet at a common endpoint. The common point of contact is called the vertex of an angle.

As,

angle 1= 30 (Vertically opposite angle)

angle 7= 30 (corresponding angle)

angle 4+30= 180 (linear pair)

 angle 4= 150

angle 4= angle 2= 150 (Vertically opposite angle)

angle 2= angle 6= 150  (corresponding angle)

angle 1= angle 5= 30  (corresponding angle)

angle (2x+3)= angle 4  (corresponding angle)

     2x+3= 150

      x= 73.5

Lean more about angle here:

brainly.com/question/13954458

#SPJ1      

7 0
2 years ago
What is 6476 divided by 12
pentagon [3]
6467/12 is 539.667 ;))
4 0
3 years ago
Read 2 more answers
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