Please check my answer~

Find the distance between points C (4,12) and D (-2,5) to th3 nearest tenth.

d=sqrt(-2,4)^2+(5-12)^2
d=sqrt36+49
d=sqrt85
d=9.2

2 answers

oops I meant d=sqrt(-2-4)^2+(5-12)^2
yep

But I'd just leave it as √85

That is its exact value, not some decimal approximation.