CAN YOU PLEASE HELP, I AM STUCK..THANKS

FIND THE DISTANCE BETWEEN (-3,2) AND (1,4)
DETERMINE WHETHER THE ROOT OF 77 AND THE ROOT OF 121 IS RATIONAL OR IRRATIONAL.

THANKS IN ADVANCE, I APPRECIATE ALL OF THE HELP....

The distance between a,b and c,d is

distance= sqrt ((a-c)^2 + (b-d)^2)

77 has the factors 7, and 11. The square root of both of these is not rational.

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