Question

Find the distance between points P(8,2) and Q(3,8) to the nearest tenth

Answer 1

Distance formula: 
$\sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}$
Plug in the given coordinates: 
$\sqrt{(3-8)^2 + (8-2)^2}$

Simplify: 
$\sqrt{(-5)^2 + (6)^2}$
$\sqrt{25 + 36}$
$\sqrt{61}$

Since they are asking to round to the nearest tenth it is assumed that they would like a decimal answer. 
Final answer: 7.8

Answer 2

7.8 units would be the answer