xYz xyzHomework Assessment X Course Hero X + C xyzhomework.com/imathas/assessment/showtest.php Update : 2:53:26 remaining As machines get older, the cost of maintaining them tends to increase. Suppose for a particular machine, the rate at which the maintenance cost is increasing is approximated by the function C'(t) = (5t + 25) 10.5t2 + 5t, for 0 S t - 10, where C is the maintenance cost in dollars and t is the number of years since the purchase. The company will sell or scrap the machine in 10 years and buy a new one if the cost to maintain it in its last year of service is projected to exceed $750. Round monetary answers to the nearest cent. a. What is the total expected cost to maintain this machine over its first 2 years of service? $ b. What is the total expected cost to maintain this machine in its last year of service? $ Should the company keep or scrap the machine? Select an answer v c. How many times more expensive is it to maintain the machine in its last year of service than its first year of service? Round to 1 decimal place. times Question 8. Points possible: 1 License This is attempt 1 of 1. Determine the area of the region bounded by the given function, the r-axis, and the given vertical lines. The region lies above the r-axis. f(x) = 5VI, x = 1 and x = 4 Preview TIP Enter your answer as a fraction (like 3/5 or 10/4), an integer (like 4 or -2), or exact decimal (like 0.5 or 1.25) Enter DNE for Does Not Exist, oo for Infinity