Answer: 122 ft and 12.77 m
Step-by-step explanation:
First question answer = 100/cos35 = 122.07 = 122 ft
Second question answer = 12/sin70 = 12.77 m
In order to find the amount he spent, you must add up the total costs he spent to decorate.
148.65
+52.75
+29.33
_______
?
Which means, he spent $230 to decorate his bedroom.
1.5b=11-9
1.5b=2
b=1.3 repeating or 1 1/3
The answer is C.
You need you use Pythagoras theorem 2 times to have 2 equations with the same sides i.e. for example a2 + b2 = 81 and a2 - b2 = 9.
You can do it as you have different triangles but with the same sides.
We have the triangle 30° - 60° - 90°.
The lenght of the sides are in proportion: 
