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3 years ago

Determine the missing length using the Pythagorean theorem. Round the answer to the nearest tenth.

Mathematics

1 answer:

Daniel [21]3 years ago

5 0

The answer is the first one which is 6 feet

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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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3 years ago

Write a two column proof for the reflexive property of Angel congruence

olasank [31]

If you can separate the figures and the segment, or angle in question, is the same, the reflexive property of congruence can be used in the proof. ... Separating the two triangles, you can see Angle Z is the same angle for each triangle. Since they are the same angle, the angle is congruent to itself.

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3 years ago

Solve the quadratic equation: -x^2 = 4

arsen [322]

So listen to your teacher next time

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4 years ago

Explain how you know these two figures are similar.

Alborosie

Answer:

Both figures are rhombuses, they have the same angle degrees, one is just slanted more and smaller than the other.

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