What missing number would complete the factorization x^2- 7x + 10 = ( x - 5 ) ( x - ? )
a. 1
b. 2
c. 4
d. 5

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The Answer is B. 2

Because when you foil (x-5)(x-2), you get:

(x-5)(x-2)

x^2 - 5x - 2x + 10

x^2 -7x +10

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

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