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25

There is no square root of -75. If it's 75, that is 5 square root 3.

2 times the Square root of 3 + 4

The square root of 75 is an irrational number and it is 5 times the square root of 3

81

10.3...

1.5

1.3333

36

3

√(75) = √(3*25) = 5√(3)

root 27 = root 9 x root 3 = 3 root 3. Dividing this by root 3 gives 3!

5√3

4

√(75) + √(3)√(5 * 5 * 3) + √(3)5√(3) + 1√(3)(5+1)√(3)6√(3)

1.7778

It is the same as: 5 times square of 3

1.7778

1.5

5 times the square root of 3

It is equal to the square root of 147 or about 12.124 to 3 decimal places

sq. root of 75 = sq. root of (25 x 3) = (sq. root of 25)(sq. root of 3) = 5(sq. root of 3)

Square root 1/483 = .0455

18

No. The square root of most numbers is irrational - only if the number of which you take the root happen to be perfect squares, do you get a rational root. In this case, to take the square root of 3/4, 3 is not a perfect square, so the root is not rational. Or you can take .75 to be 75/100; once again, 75 is not a perfect square, so the root is irrational.