Jacob Marley was the first ghost to visit scrooge to warm him about the others to visit him that night. if not him the it would be the ghost of christmas past.
-11-(-7)
-11+7
Your answer is -4
Answer:
4
Step-by-step explanation:
Area = 1/2 b * h
h = b - 9
b = b
Area = 56cm^2
Area = 1/2 (b - 9) * b
56 = 1/2 (b^2 -9b)
112 = b^2 - 9b
b^2 - 9b - 112 = 0
b = 16 and therefore the height is
h = 26 - 9 = 7
Check
Area = 1/2 * 16 * 7
Area = 8 *7
Area = 56 which checks.