The formula for determining the distance of the focus from the vertex is as follows,
f = x² / 4a
where f is focus, x is the radius (half the value of diameter), and a is the depth. Substituting the known values to the given equation,
f = (30/2 mm)² / (4)(5 mm)
f = 11.25 mm
<em>ANSWER: 11.25 mm</em>
Answer:
DF=3.75
Step-by-step explanation:
24/6=15/x
cross multiply to get 24x=90
x=3.75
We need to find the quotient of the given division problem.

In order to find its quotient, we will use long division.
)
First of all, we put x in the quotient as
goes into
, x times.
So, we get:
)
(x

Upon subtracting, we get:

We can see that
goes into
, -2 times, therefore, the next term in the quotient will be -2. This makes our quotient as (x-2).