Answer:

Step-by-step explanation:
Let
, we need to determine
, which can be found by applying the following property:
,
(1)
Then,


41, because the ratio is the same
Answer:
Third option

Step-by-step explanation:
In this case we must write a quadratic equation in the vertex form.
We have the vertice. (-1, 5)
We know that the vertex form for a quadratic equation is:
.
Where (h, k) is the vertex.
So if the vertex is (-1, 5), the equation sought is:


Therefore the answer is the Third option.
Answer:
A =28.26
Step-by-step explanation:
Using the area formula
A = pi r^2
We use pi = 3.14 and the radius is 3
A = 3.14 * (3)^2
A = 3.14 *9
A =28.26