Remove all perfect squares from inside the square root.
√72 =

5√2 or 3 and 2

Step-by-step explanation:

You would bring it down for 9 and 8 which would be 72

Then you would get a perfect square of 9 which would be 3

Then you would do 4*2 which would be 8 so you would divide 4 by 2 which would be two which would be another perfect score.

So then you would add them which would be 5 then you get the leftover 2 and make 5√2

But your perfect squares are 3 and 2

i dont know nkw

step-by-step explanation:

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the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.