How many people a year die from water born diseases
Solved
Show answers
More tips
- W Work and Career 10 Best Ways To Find A Job: Tips To Land Your Dream Job...
- L Leisure and Entertainment How to Choose a Program for Cutting Music?...
- A Auto and Moto How to choose the right drive for your BMW...
- L Leisure and Entertainment How to Choose the Perfect Gift for Men on February 23rd?...
- H Health and Medicine How to Treat Whooping Cough in Children?...
- H Health and Medicine Simple Ways to Lower Cholesterol in the Blood: Tips and Tricks...
- O Other How to Choose the Best Answer to Your Question on The Grand Question ?...
- L Leisure and Entertainment History of International Women s Day: When Did the Celebration of March 8th Begin?...
- S Style and Beauty Intimate Haircut: The Reasons, Popularity, and Risks...
- A Art and Culture When Will Eurovision 2011 Take Place?...
Answers on questions: Chemistry
- C Chemistry . For the first three electron orbits to be stable, how many electrons must each orbit contain?...
- H History Paano maiuugnay ang kakulangan ng mga produkto sa pamilihan sa pangangailangan ng mga mamamayan?...
- M Mathematics Mandie is making 15 cups of fruit salad. what ratio of grapes to blueberries should she use...
Ответ:
x = 129.9 degrees to the nearest tenth.
Step-by-step explanation:
The largest angle will be opposite the longest side (20 in). So by the Cosine Rule:
20^2 = 9^2 + 13^2 - 2*9*13 cos x where x is the largest angle.
cos x = (20^2-0.640 - 9^2 - 13^2) / (-2*9*13)
cos x = -0.641025641
x = 129.87 degrees.