The height (in meters) of a projectile shot vertically upward from a point 3 m above ground level with an initial velocity of 25.5 m/s is h = 3 + 25.5t − 4.9t2 after t seconds. (Round your answers to two decimal places.) When does it hit the ground? With what velocity does it hit the ground?
Suppose that a population of bacteria triples every hour and starts with 200 bacteria. Find an expression for the number n of bacteria after t hours. Use it to extimate the rate of growth of the bacteria population after 3.5 hours.

The balance sheet contains the following major sections: current assets long-term investments property, plant, and equipment intangible assets other assets current liabilities long-term liabilities contributed capital retained earnings accumulated other comprehensive income required: the following is a list of accounts. using the letters a through j, indicate in which section of the balance sheet each of the accounts would be classified. if an account does not belong under one of the sections listed, select "not under any of the choices" from the classification drop down box. for all accounts, indicate if the account is a contra account or an account that would normally be deducted on the balance sheet by selecting "yes" from the second drop down box, otherwise select "no". account classification contra or deducted (yes/no) 1. cash 2. bonds payable (due in 8 years) 3. machinery 4. deficit 5. unexpired insurance 6. franchise (net) 7. fund to retire preferred stock 8. current portion of mortgage payable 9. accumulated depreciation 10. copyrights 11. investment in held-to-maturity bonds 12. allowance for doubtful accounts 13. notes receivable (due in 3 years) 14. property taxes payable 15. deferred taxes payable 16. additional paid-in capital on preferred stock 17. premium on bonds payable (due in 8 years) 18. work in process 19. common stock, $1 par 20. land 21. treasury stock (at cost) 22. unrealized increase in value of available-for-sale securities

Within the relevant range, if there is a change in the level of the cost driver, then a. total fixed costs will remain the same and total variable costs will change b. total fixed costs will change and total variable costs will remain the same c. total fixed costs and total variable costs will change d. total fixed costs and total variable costs will remain the same

Your father's employer was just acquired, and he was given a severance payment of $375,000, which he invested at a 7.5% annual rate. he now plans to retire, and he wants to withdraw $35,000 at the end of each year, starting at the end of this year. how many years will it take to exhaust his funds, i.e., run the account down to zero? a. 22.50 b. 23.63 c. 24.81 d. 26.05 e. 27.35