The idea is to use the tangent line to at in order to approximate .
We have
so the linear approximation to is
Hence and .
Then
Option B:
Solution:
Given sound level = 120 decibel
To find the intensity of a fire alarm:
where
Step 1: First divide the decibel level by 10.
120 ÷ 10 = 12
Step 2: Use that value in the exponent of the ratio with base 10.
Step 3: Use that power of twelve to find the intensity in Watts per square meter.
Now, do the cross multiplication,
Option B is the correct answer.
Hence .
Answer:
si si si si si si los números racionales también son fracciones
After demonstrating the procedure by algebraic means, the expression <em>is equivalent to</em> .
In this question we proceed to <em>simplify</em> by <em>algebraic</em> means into a <em>single</em> <em>radical</em> expression when possible, whose procedure is shown below and explained by appropriate definitions and theorems:
- Given.
- Commutative property/ Associative property.
- Definition of cubic root//Result
After demonstrating the procedure by algebraic means, the expression <em>is equivalent to</em> .
To learn more on radical expressions, we kindly invite to check this verified question: brainly.com/question/1810591