Answer:
3 degrees per hour
Step-by-step explanation:
2 degrees in 2/3 of an hour
2/2 = 1
1 degree in 1/3 of an hour
1*3 = 3
3 degrees in 1 hour
5m + 7/2 = -2m + 5/2
5m + 2m = 5/2 - 7/2
7m = -1
m = -1/7 <==
Answer:
the answer is DBC=90°
because the midpoint of the perimeter of quadrilateral is B