Answer:
198.4 ounches is the real answer
7cos(x) + 1 = 6sec(x)
7cos(x) + 1 = 6/cos(x)
7cos^(x) + cos(x) = 6
7cos^(x) + cos(x) - 6 = 0
[7cos(x) - 6][cos(x) + 1] = 0
cos(x) = 6/7 , x = arccos(6/7) and
cos(x) = -1, x = 180
The weight of a plane with 81 gallons of fuel in the tank is about 44 tons
a corner of a cube connects 3 sides to each other,
then add the side of the cut
so it would have 4 sides
