1.

The region bounded by a: = 1 y4 , a: = 0 is rotate about the line y = 3. The volume of the resulting solid is: f, A 9kg quantity of radioactive isotope decays to 1 kg after 13 years. Find the decay constant of the isotope. k: f. The decay constant 0fFermium100 is 2.47 inverseyears. What is its halflife? f. A bank pays interest at a rate of 8%. What is the yearly multiplier if interest is compounded (a) yearly? (b) three times a year? (c) continuously