13.8462
exterior angles add up to 3600. 360 divided by 23 = 15.65 (2dp) 180-15.65 = 164.350
minus eight 13 - (-23) - (180 / 45) + (-40) = -8 That's assuming that the 180 was to be divided by 45 (its hard to write parentheses in text!) The above answer is correct if you are following the standard Order of Operations, which are: 1. Exponents and Roots 2. Multiplication and Division 3. Addition and Subtraction See the Related Links for more info on Order of Operations. Another answer: I read it as: {[13-(-23)-180]/45} + -40 = -43.2 I divided first three numbers by 45, not just 180. That's just how I read it.
6
0.4389
180
0.0074
0.5278
13.8462
22.5
4.2857
36
It is: 157+23 = 180
18
115.75
20
180 / 3 / 2 / 1 = 30