Answer:
6.6
Step-by-step explanation:
The relationship between the sides of a triangle is a^2 + b^2 = c^2, where c is the hypotenuse. Here, c = 12 and a = 10, so...
10^2 + b^2 = 12^2
100 + b^2 = 144
b^2 = 44 subtract 100 from both sides
b = [tex]\sqrt{44}[/tex] take the square root of both sides
b = 6.63324
b = 6.6 round to the nearest tenth