A student was asked to find the value of a $2,300 item after 5 years. The item was depreciating at a rate of 20% per year. What is wrong with the student's work? 2,300(0.2)t
$0.74

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

Choose the more precise measurement. 26.4 cm or 8.39 cm

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16