The value of y varies inversely as the square of x, and y = 9, when x = 4.
2 answers:
Answer:
The answer is
<h2>12</h2>Step-by-step explanation:
The above variation is written as
where k is the constant of variation
when y = 9
x = 4
We have
k = yx²
k = 9(4)²
k = 9 × 16
k = 144
So the formula for the variation is
when y = 1
Cross multiply
x² = 144
Find the square root of both sides
x = √144
x = 12
Hope this helps you.
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Answer:
is closest to 4.
Step-by-step explanation:
Our approach consist in comparing the given cubic root with respect to other two cubic roots consecutive to each other and whose result is an integer. The following condition must be satisfied:
If , then the simultaneous inequation is observed:
Since 62 is closer to the upper bound, then is closest to 4.