is inversely proportional to the square of . When , . Find the value of when .
Answer and explanation
Correct answer: D.
- Step 1: Set up the proportionality equation: .
- Step 2: Find the constant of proportionality using : .
- Step 3: Calculate when : .
Answer
.
Why not the others: assumes direct inverse proportionality (); inverts the calculation; squares the initial ratio incorrectly.
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