What is the length of leg s of the triangle below?
2 answers:
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we have
Adds both sides
square root both sides
therefore
<u>the answer is</u>
the resulting equation is
To express a function of the form 
in vertex form 
where (h,k) is the vertex of the parabola, we need to find the vertex first.
To find the vertex we are going to use the vertex formula:
, and 
will be the function evaluated at 
.
We can infer from our function that
and 
. So lets find :
Now that we have, we can evaluate the function at 1 to find :
We have the vertex (1,3) of our parabola, so we can use its vertex form:
We can conclude that the vertex for of our parabola is <span>f(x) = (x + 1)2 + 3.</span>
To find the vertex we are going to use the vertex formula:
We can infer from our function that
Now that we have
We have the vertex (1,3) of our parabola, so we can use its vertex form:
We can conclude that the vertex for of our parabola is <span>f(x) = (x + 1)2 + 3.</span>
Answer:
The approximate loudness of a rock concert with a sound intensity of is 110 Db.
Step-by-step explanation:
The loudness, L, measured in decibels (Db), of a sound intensity, I, measured in watts per square meter, is :
We are supposed to find What is the approximate loudness of a rock concert with a sound intensity of
So,
Substitute the values in the formula :
L=110 Db
So, the approximate loudness of a rock concert with a sound intensity of is 110 Db.