Which of the following situations best models the materials needed to build the fence for the warehouse lot shown in the general contractor’s design?
a)the general contractor should purchase enough materials for approximately 3,000 linear feet of fencing.
b)the general contractor should purchase enough materials for approximately 3,300 linear feet of fencing.
c)the general contractor should purchase enough materials for 615,636 linear feet of fencing.
d)none of the above.

Which expressions are equivalent to k/2 choose 2 answers: a k-2 b 2/k c 1/2k d k/2 e k+k

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.

Need ! the total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?