Quick help please!
1 answer:
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Answer:
See below
Step-by-step explanation:
Which is the closest to 6
or
So, find the square root of each ( I suggest using a calculator)
Which is closest? Let's see.
6 - 5.83 = 0.17
6.24 - 6 = 0.24
6 - 5.91 = 0.09
6.16 - 6 = 0.16
Find the smallest #
0.09 is the smallest, so 5.91 is the closest. Square the #, we get
Hope this helps! =D
Step-by-step explanation:
Area, A = Length,x × Breadth,y
A=xy
When x and y are independent, E(xy) = E(x)E(y)
As x and y have the same distribution, U[L-A,L+A], they have the same mean.
We could argue by symmetry that E(x) = L and E(y) + L, also.
We can also reason this from the fact that, if X ~ U[L-A, L+A], f(x) = 1/(2A) from L-A to L+A
Therefore
=1/(4A)(L+A)2 - 1/(4A)(L-A)2
= 1/(4A)(L2 + 2AL + A2) - 1/(4A)(L2 - 2AL + A2)
=1/(4A)(2AL+2AL)
= 1/(4A)(4AL)
= L
Thus, E(xy) = E(x)E(y) = L×L = L²