40√5, or 89.4427191
161.554944....
It is: 50.04997502
To the nearest ten thousandth: 1.7725 To the nearest ten thousand: zero
real answer ; 6.8556546rounded to the thousand place ; 6.857
122.4744871
40√5, or 89.4427191
161.554944....
It is: 50.04997502
43.11612...
The square root of 42 is substantially less than 500, so rounded to the nearest thousand it is 0.
32.03 to two significant figures
To the nearest ten thousandth: 1.7725 To the nearest ten thousand: zero
real answer ; 6.8556546rounded to the thousand place ; 6.857
The square root of the square root of 2
Let the coefficient by 'x' Hence its square root is x^(1/2) or x^(0.5) Then the square root again is [x^(1/2)]^(1/2) Third time over {[x^(1/2)]^(1/2)}^(1/2) Now the rules of indices are [x^(n)[^(m) = x^(nm) When terms are 'nested' , multiply together. Also x^(n) X x^(m) = x^(n+m) x^)n) / x^(m) = x^(n-m) However, the first rule (nesting) applies in this case, when you multiply the indices together/ Hence x^(1/2 X 1/2 X 1/2) = x^(1/8) , Which is the 8th root.!!!!!
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