Rewrite the equations in the form ax^2+bx+c =0: -5x (x +6)=4(x-3) -10 4x^2-2x(3x+1)=5
1 answer:
You might be interested in
Answer: <em>3. The correct option is: A) 3.57 decibels.</em>
<em>6. The correct option is: B) </em>
Step-by-step explanation:
3. Sound intensity is cut to 44% of its original level. That means, if the original sound intensity was 100, then now sound intensity will be 44.
So, and
Using the formula , we will get.....
<em>(Rounded to the nearest hundredth)</em>
So, the loudness would be reduced by 3.57 decibels.
6. Given expression is:
First applying the property , we will get.....
Now using the formula, , we will get....
Thus, the answer as a single natural logarithm is