Considering the logarithmic loudness equation, the relative intensity of 120 decibels is of .
<h3>What is the logarithmic loudness equation?</h3>
The equation is:
In which:
- L is the loudness, in decibels.
- R is the relative intensity.
For this problem, we have that L = 120, hence the relative intensity is found as follows:
More can be learned about logarithmic equations at brainly.com/question/28043645
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First, let's convert the mixed fraction into an improper fraction:
2 3/8 = 21/8
21/8 * 400 = 8400/8
8400/8 = 1050
It will cover 1050 square ft.
The square root of 34 is just sqrt(34), or if you're looking for a rounded decimal answer, about 5.83. The square root of -4/11:
The square root of 34 is an irrational number. The square root of -4/11 is an imaginary number, or nonreal complex number.
First find the slope of the line DM using the slope formula: .
Use the points D(0, 2) and M(-3, -5). Substitute in -5 for y2, 2 for y1, -3 for x2, and 0 for x1.
, subtract the coordinate points.
= ; the slope of the line DM is 7/3.
Perpendicular lines have opposite reciprocal slopes, meaning you switch the sign (say for example a negative becomes a positive, a positive becomes a negative) and you flip the fraction over (for example 1/2 becomes 2/1 and 2/1 becomes 1/2).
The opposite reciprocal of 7/3 is -3/7, so the line perpendicular to the line DM has a slope of -3/7.
You can't see the circled one's properly