Given a mean of 61.2 and a standard deviation of 21.4, what is the z-score of the value 90 rounded to the nearest tenth? 1.3 1.1 −1.1 −1.3

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step-by-step explanation:

the radius is 2 times the diameter.

step-by-step explanation:

i’m sorry but i don’t know sorry

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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