Question

What is the length of stack J K with bar on top ? Round to the nearest tenth of a unit.

A.
4.5 units

B.
5.4 units

C.
6.0 units

D.
12.8 units

Answer 1

Hello there.

What is the length of stack J K with bar on top ? Round to the nearest tenth of a unit.

A.
4.5 units

Answer 2

For the answer to the question above,
stance formula : d = sqrt (x2 - x1)^2 + (y2 - y1)^2
(3,5)(7,3)
d = sqrt (7 - 3)^2 + (3 - 5)^2
d = sqrt 4^2 + (-2^2)
d = sqrt 16 + 4
d = sqrt 20
d = 4.47
when rounded = 4.5
So the answer to your question is the first one among the choices which is a. 4.5