4 years ago

Find the measure of <2

1 answer:

8 0

◆ LINES AND ANGLES ◆

$as \: shown \: in \: figure , \\ \\ angle \: 1 \: and \: angle \: 2 \: form \: linear \: pair \: , \\ \\ therefore \: \: , \\ \: \\ angle \: 1 \: \: + \: \: angle \: 2 = 180 \\ \\ given \: that \: angle \: 1 = 40 \\ \\ 40 + angle \: 2 = 180 \\ \\ angle \: 2 = 140 \: ans.$

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Which statements are true for the following expression?

snow_tiger [21]

Step-by-step explanation:

(39 + 33) - 94

39 + 33 = 72

94 - 72 =22

4 0

4 years ago

16 Jamie used 40% of her savings to buy a bag and 80% of the remainder to buy a

loris [4]

Answer:

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Please vote for Brainliest and I hope this helps!

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2 years ago

What is the decibel level of a dog barking with intensity 10−5 watts per square inch? Use a logarithmic model to solve.

Vsevolod [243]

Answer:

The sound intensity is about 101.9 dB

Step-by-step explanation:

Sound intensity is the amount of sound energy per unit area.

The intensity of the dog bark is 10⁻⁵ W/in². The intensity of sound in decibels is given by:

$\beta=10\ dB*log(\frac{I}{I_o} )\\\\Where\ I=Sound\ intensity\ in \ W/m^2, I_o=reference\ sound\ intensity=10^{-12}\ W/m^2\, \beta= sound\ intensity\ in\ dB$