Respuesta :

Answer:

square root of 45 is 6.71 when rounded up,

Step-by-step explanation:

square root of 45 is 6.7082093 we round up (numbers 5&up round up 4 and below go down)  so we get 6.71

square root of 23 is 4.79583152 we round to 4.8

square root of -23 is 4.79583152 i .  Yes,the i is part of the number.

Generally i means imaginary. also technically if this is for school they might accept this result as a negative number.

Hope this helps.