I already answered this somewhere. Search the problem.
The answer is d because when you go from positive to negative you add the positive number to get to zero and than add the number you are getting to make sense?
9514 1404 393
Answer:
48°
Step-by-step explanation:
Supplementary angles total 180°.
m∠A +m∠B = 180°
(6x -30)° +(8x +28)° = 180°
14x = 182 . . . . . . . . . . . . . . . . divide by ° and add 2
x = 13 . . . . . . . . . . . . . . . . . . . .divide by 14
Then the measure of angle A is ...
m∠A = (6·13 -30)° = 6(13 -5)° = 6·8°
m∠A = 48°
8 - 45k - 40 = 3k - 1
-32 - 45k = 3k - 1
+ 1 +45k +45k + 1
_________________
-31 = 48k
-0.689 = k
Answer: 21m-49n
7(3m-7n)
Step-by-step explanation: