What are the coordinates of the vertex? *

(2,-7)

Step-by-step explanation:

The equation of a parabola is y=a(x-h)^2 + k

the vertex in this equation is (h,k)

Since the equation that is given is y=(x-2)^2-7

we can conclude that the vertex will be (2,-7)

perimeter = 10 +  √10  units

explanation:

first, we will need to get the length of each line using the distance formula which is as follows:

distance = 

1- length of ab:

ab =   = 5 units

2- length of ac

length of ac is the same as ab = 5 units

3- length of bc:

bc =   =  √10  units

now, we can get the perimeter by adding the side lengths as follows:

perimeter = 5 + 5 +  √10

perimeter = 10 +  √10  units

hope this : )

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