Answer:
10 ft to nearest foot.
Step-by-step explanation:
We use the Pythagoras theorem:
12^2 = 6^2 + h^2 where h is the height on the barn
h^2 = 12^2 - 6^2
h^2 = 144 - 36 = 102
h= √108 = 10.39
A triangle.
x+-x = 0
x-x = 0
0 = 0
infintely many solutions
113 is correct because 49 divided by 3 is 16.33. 16.33 multiplied by 7 is 113
