Answer:
6
Step-by-step explanation:
Y is directly proportional to 1/x2
Y = k/x2
Where k is the proportionality constant
y1*(x1)2 = y2*(x2)2
7.2*(10)2 = 20*(x2)2
x2 = sqrt(36)
X = 6
19.7989898732 or to simplify it 19.79
Your question is so blur i cant see
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Answer:
poor but live today
Step-by-step explanation: