Answer:
<em>The sound level would be at 80 decibels at 1 or 7 number of measures played</em>
Step-by-step explanation:
<u>Equations with Absolute Values</u>
We have the function s to represent the sound level in decibels:
Where x is the number of measures of the music played.
We are required to find the value of x that makes s=80 decibels. We have to find the equation:
Subtracting 50:
Dividing by 10:
For the absolute value be equal to 3, its argument could be positive or negative:
Or
This leads us to two solutions:
x=7
Or
x=1
The sound level would be at 80 decibels at 1 or 7 number of measures played
i can't tell you the answer, but i will teach you how to get it!!
first you convert it to a fraction, then you make it a decimal divide the top number by the bottom number, then you move the decimal two places to the right --> and add a percent symbol %
If we observe the graph we can see that the curve crosses the x-axis at the following points: 1, 3, and 5
This means x = 1, x = 3 and x = 5 are the roots of the polynomial and x - 1, x - 3 and x - 5 are the factors of the polynomial.
We can express the polynomial as the product of its factors. So the polynomial will be (x-1)(x-3)(x-5)
The correct answer to this question is option A
Hello,
The answer is "40.30".
Reason:
First you fine the tenths place:
43.29
Then look at the number next to it:
43.29
Its greater than 5 therefore it does round:
=40.30
If you need anymore help feel free to ask me!
Hope this helps!
3/2+y/3=2
3/2+y=2.3
3/2+y=6
3/2-6=-y
3-12/2=-y
-9/2=-y
-9/-2=y
9/2=y
4.5=y
