9. -7/12
10. -2.75
11. 1.844
12. 4.539
To find the angle Q we can us the sin law so:
So we can solve for Q so:
255.is the answer because of the 38 and the 48 percent of each of both the x and y and is you add then times them you get 255 as your answer
rules to find :- 1 All non zeroes number are significant
2 if zero proceeding the decimal point also work as non zero figure
3 zero are following the decimal point and proceeding the first non zero digit
4 Zero in between 2 non zero digits are also significant
5 if 1 zero follow the decimal point
790 :- 2 significant figures
0.0391 :- 3 significant figures ( follow 3 rule)
81.05 :- 4 significant figures ( rule 4)
0.000001 :- 1 significant figure
8546 :- 4 significant figures
79.0 :- 3 significant ( rule 5)
