A company has to make a large number of boxes. The company has 6 machines.
All the machines work at the same rate.
When all the machines are working, they can make all the boxes in 11 days.
The table gives the number of machines working each day.
day 1
day 2 day 3
all other days
Number of machines working
3
4
6
Work out the total number of days taken to make all the boxes.

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years

Thanh and her crew are building a stage in the shape of a trapezoid for an upcoming festival. the lengths of the parallel sides of the trapezoid are 14 ft and 24 ft. the height of the trapezoid is 12 ft. what is the area of the stage? enter your answer in the box. ft²

(b) suppose that consolidated power decides to use a level of significance of α = .05, and suppose a random sample of 100 temperature readings is obtained. if the sample mean of the 100 temperature readings is x⎯⎯ = 60.990, test h0 versus ha and determine whether the power plant should be shut down and the cooling system repaired. perform the hypothesis test by using a critical value and a p-value. assume σ = 5. (round your z to 2 decimal places and p-value to 4 decimal places.)