3 years ago

What is the error in this problem

Mathematics

1 answer:

Vera_Pavlovna [14]3 years ago

4 0

Step-by-step explanation:

The adjacent should be 16, 39 is the hypotenuse

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Y is inversely proportional to the square of x. If Y = 9 when x = 2, then what is y, when x is 10?

a_sh-v [17]

Answer:

y = 0.36

Step-by-step explanation:

Given y is inversely proportional to x² then the equation relating them is

y = $\frac{k}{x^2}$ ← k is the constant of variation

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9 = $\frac{k}{2^2}$ = $\frac{k}{4}$ ( multiply both sides by 4 )

36 = k

y = $\frac{36}{x^2}$ ← equation of variation

When x = 10 , then

y = $\frac{36}{10^2}$ = $\frac{36}{100}$ = 0.36

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3 years ago