An average home game for the WildCats brings in a crowd of 250 people. A random sample of 10 people at the entrance gate reveals that 6 people will be supporting the WildCats and 4 will be supporting the visiting team. Approximately, how many fans at the game will be supporting the WildCats?

Solve for x by completing the square. 2x^2-4x+7=0

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.