Kronos industries bought a desktop for $3000. it is expected to depreciate at a rate of 10% per year. what will the value of the desktop be in 4 years? round to the nearest dollar.

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.

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2

Y= 4x + 3 y = - 1 4 x - 5 what is the best description for the lines represented by the equations?