Answer:
40° and 140° (with x = -10)
Step-by-step explanation:
Since the angles are supplementary (when added, equal 180°), you can add the two angles together to get (-18x)°. 180/-18 = -10 for x. Fill in -10 for x in both expressions. (-14 • -10)= 140° and (-4 • -10)- 40°. 140+40=180
Answer:
the mean is 4.2
Step-by-step explanation:
180° because it is half of a full circle(360°)
Answer:
its c
3 : 7
3/7
Step-by-step explanation:
Answer:
15
Step-by-step explanation:
30 / 2 = 15
