Question

HELP PLEASE!!!

Answer 1

Answer:

A

Step-by-step explanation:

sqrt (10 - 2)^2 + (7 - 1)^2

Answer 2

The distance between the points:
$d = \sqrt{( x_{2} - x_{1} ) ^{2} +(y _{2}-y _{1}) ^{2} } \\ d(CD) = \sqrt{(7-1) ^{2}+(10-2) ^{2} } = \\ = \sqrt{6 ^{2} +8 ^{2} }= \sqrt{100}=10$
Answer:
A ) Square root of the quantity of 10 minus 2 all squared plus 7 minus 1 all squared.