Answer:
x = 3
Step-by-step explanation:
8x - 12 = 4x
<em>subtract 4 from each side</em>
4x - 12 = 0
<em>add 12 to each side</em>
4x = 12
<em>divide each side by 4</em>
x = 3
Answer:
b. 44°
Step-by-step explanation:
Reference angle = x
Hypotenuse = 21
Adjacent = 15
Apply trigonometric function CAH:



x = 44.4153086° ≈ 44° (nearest degree)
Try y=-2x-3 (I think that should be it)
Answer:
96.13%
Step-by-step explanation:
181-7=174. 174/181