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3 years ago

–x – 7 = 16 please help me

2 answers:

7 0

Move the -7 to the right, its sign will flip (do you know why?)
Negate both sides to change -x to x

-x = 16+7
-x = 23
x = -23

slavikrds [6]3 years ago

6 0

-x-7=16 |+7 , add to both sides
-x=23 |*(-1)
x = -23

Answer:
-23
,,,,,,,,,,,,,,,,,,,,
-x-7=-(-23)-7=23-7=16

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What is the decibel level of the sound of a monster truck with intensity 10−2 watts per square inch? Use a logarithmic model to

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Answer:

BdB = 68.10 decibels

Step-by-step explanation:

BdB = 10 log10 I / Io

where BdB is the sound intensity level in decibels, I is the sound intensity on the linear scale (W / m²) and I0 is the hearing threshold (10^-12 W / m²).

Converting Io de 10^-12 W/m² to W/in², tenemos

10^-12 W/m² = 1.5500031000062x10^-9 W/in²

So, applying the equation or formula,

BdB = 10 log10 (10 ^ -2 W/in² / 1.5500031000062x10^-9 W/in² )

BdB = 10 log10 (0.64516x10^6)

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BdB = 10 x 6.8096674332398761189214526331036

BdB = 68.096674332398761189214526331036

BdB = 68.10 decibels

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3 years ago

Read 2 more answers

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See ecplanation below

Step-by-step explanation:

False.

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What phrases describes the expression of 16-y

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Hope this helps~