Answer:
Square root of 50 approx. 7.07
Explanation:
Do the distance formula, Which is d= sqrt of (xsub2-xsub1)squared + (ysub2-xsub1)Squared.
It would be d= sqrt of (19-20)^2 +(5-(-2))^2 = sqrt of 50
Answer: 5 root 2
using pyth. theorem
x^2= 1^2 +7^2
x^2 = 50
x = 5 root 2
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