The state of Montana is experiencing a warm day after a heavy snowfall. The graph shows the height of the snow, h, in centimeters after t hours. 18
16
14
Height (cm)
512
10
8
6
4
2
1 2 4 5 6 7 8 9
Time (hours)
Part A: What linear function does the graph represent?
oh=3t+6
oh=3t+18
h = -3t+6
o h = -3t+18
Previous
DELL

If m∠abc = 70°, what is m∠abd? justify your reasoning.  using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°.  using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°.  using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality.  using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.