Answer:
Step-by-step explanation:
The given line has a slope m = 4.
We know parallel lines have equal slopes.
<u>Use point - slope equation and substitute the coordinates of the given point to get:</u>
- y - 5 = 4(x - 4)
- y - 5 = 4x - 16
- y = 4x - 16 + 5
- y = 4x - 11
M∠ADB + m∠BDC = m∠ADC [<span>angle addition postulate]
x + x + 10 = 60
2x + 10 = 60
2x = 60 - 10
2x = 50
x = 50/2
x = 25
a
m</span>∠ADB = x = 25°
b
m∠BDC = x + 10 = 25 + 10 = 35°
Answer:
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Answer:
C
Step-by-step explanation:
-1.5x=-2.55
1.5x=2.55
x=2.55/1.5
x=1.7
