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Ede4ka [16]
3 years ago
7

2.74 as a mix number

Mathematics
1 answer:
Inga [223]3 years ago
6 0

Answer:

2 74/100

Step-by-step explanation:

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Use the formula L= 10 log 10 R, where Is the loudness of a sound and R is the sound's relative intensity. to find out how much l
WINSTONCH [101]

Answer:

X=24.1decibels

Step-by-step explanation:

From the question we are told that:

Loudness function L= 10 log_{10} R

Sound of a person S_p=80\ decibels\ or 10^8

Number of persons talking n=20 people

 

Generally the Relative intensity for 20 people is mathematically given by

Relative intensity forR_{20}=20*10^8

Relative intensity forR_{20}=20^8

Generally the loudness for 20 people is mathematically given by

L_{20}= 10 log_{10} R

L_{20}= 10 log_{10} 20^8

L_{20}= 10 (8 log_{10} 20)

L_{20}= 104.1 decibels

Therefore increase in loudness X is given as

X=104.1-80=-52.90

X=24.1decibels

5 0
2 years ago
What is the inverse of f(x) = x/5 -2
Cerrena [4.2K]

Answer:

y= 5x+10

Step-by-step explanation:

Inverse basically means y is now x and x is now y.

y= x/5 -2 becomes x= y/5 -2

Remember to always leave your equation f(x) = ...

i.e. y =...

x= y/5 -2

add 2 both sides

x+2 = y/5

multiply 5 both sides

5(x+2) = y

Hence,

y= 5x + 10

Hope this helps!

Please mark brainliest if you think I helped! Would really appreciate!

8 0
3 years ago
Find the acute angle θ <br><br> cosθ = 0.5 (to the nearest degree)
skelet666 [1.2K]
Cos60° = 0.5

Any angle less than 90° is an acute angle.

Therefore, 60° is the acute angle.
7 0
3 years ago
Please help this is timed
elena-14-01-66 [18.8K]

Answer:

option d is correct

de=9 and ef=15

6 0
3 years ago
Read 2 more answers
Alice says that all the factors of 8 are even.
Rom4ik [11]
1 is not even yet it is a factor of 8. Alice is wrong.
6 0
2 years ago
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