3 years ago

F(x)=3x^2+2x-3 and g(x)=2x+4. Identify the rule for f+g

Mathematics

1 answer:

Sergio039 [100]3 years ago

8 0

Answer:

3x^2 +4x+1

Step-by-step explanation:

Hope this helps :)

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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 for $R_{20}=$ $20*10^8$

Relative intensity for $R_{20}=$ $20^8$

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

$X=104.1-80=-52.90$

$X=24.1decibels$

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The answer would be 25 because all of the others are prime numbers, meaning they can only be divided by themselves and 1. So it would be C.

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How to find x and round that answer to the nearest tenth

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Three friends each bought two slices of pizza and a drink at the mall. If drinks cost $0.75 and the total of their order was $11

monitta

Answer:

I believe it's $1.50

Step-by-step explanation:

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