If f(x) varies directly with x2 and f(x)=10 what is the value of f(x) when x=3
1 answer:
If f(x) varies directly with 
If f(x) varies directly with x then we use equation f(x) = kx
where k is the constant of proportionality
So equation becomes 
We use the information and find out k
f(x)= 10



now we use the value of k and find the value of f(x) when x=3

f(x) = 10
The value of f(x) = 10 when x= 3
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Answer:
The frequency distribution is given below:
Class Frequency
0 - 9 9
10 - 19 6
20 - 29 3
30 - 39 3
40 - 49 3
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