Question

Can you please help me

Answer 1

1) -√9

2) √18

3) |4.5|

Explanation:

-√9 = -3

√18 = 4.2426406871 = 4.2

|4.5| = 4.5

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Absolute value - Those two lines mean that any number, positive or negative, will be positive.

Hope this helps :)