12. As the dangers of smoking have become more widely known, clear class differences in smoking have
emerged. British government statistics classify adult men by occupation as "managerial and professional"(43%
of the population), "intermediate"(34%) or "routine and manual" (23%). A survey finds that 20% of men in
managerial, and professional occupations smoke, 29% if the intermediate group smoke, and 38% in routine
and manual occupations smoke. Use a tree diagram to find the percent of all adults British men who smoke.
(show answer as a percent with one decimal)

26

step-by-step explanation:

127

whether it's diameter, or radius, i believe if i remember correctly from school, every amount has to always add up to 180. so if you take 53, and starting adding, long story short, taking 127 and adding it to 53, gives you 180.

step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus