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alexandr402 [8]
3 years ago
9

Answer to solve for z??

Mathematics
1 answer:
andrew11 [14]3 years ago
6 0

Answer:

z= 0.375 or 3/8

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
3 years ago
FInd each error and make the corrections
Zepler [3.9K]

Answer:

5) EG=HG because it's corresponding part of congruent triangles are congruent (CPCTC)

8 0
3 years ago
The set of months in the year that begins with letter B
Fynjy0 [20]
I don't really see how this pertains to Mathematics...
3 0
3 years ago
sales at flower shop were $814 this week. this is $131 less than the sales last week. what were last weeks sales?​
sertanlavr [38]

Answer: The sales last were $945.

Step-by-step explanation: The sales this week are $945 and they are $131 less than that of last week. This means that they have reduce by $131,therefore we have to add the two values

7 0
3 years ago
Michael has 1.85 in dimes and nickels.He has a total of 25 coins.how many of each does he have
creativ13 [48]
D+n=25 subtract d from both sides *(if your wondering what d and n are it stands for Dimes and Nickels)* n=25-d   
0.10d+0.05= 1.85
0.10d+0.05(25-d)= 1.85
0.10d+1.25-0.05d= 1.85
0.05d = 0.60
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
My answer: He has 12 dimes (d=12) and 25-12=13 so 13 nickels.. Hope this helps! :)

5 0
3 years ago
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