9. The distance in feet of an object from a starting point is ghren by s(t) = 32 5t + 40 where t is the time in seconds. Find the velocity and acceleration at 2 seconds. 10. Find the derivative of the following functions. a. f{x) = 2W"3 -3e'5" + x 7 b. y = 3sin(2r}+4cost 11.Find the equation of the line tangent to the curve f(x)=2x-5In{2x) at x = % Write you answer as y = mx+b. 12.To test howI a body metabolizes calcium. a researcher may inject a sample of calcium that is chemically \"labeled" into the bloodstream to measure how fast it is removed from the blood. If A\") = 20.06: +0.03? 0.01t3 gives the amount (in milligrams) of labeled calcium in the bloodstream. at what rate is the calcium changing at the end ol 2 hours? 6_ s 13.Flnd lim W. XNo 3.3); 3 5x 1 2 14.Find all the int-values for which 9 (x) = ln[+L] is not continuous. x 15.5alt (NaCIJ decomposes in I.nlater into sodium (Na') and chloride (Cl) ions according to the function A(I)=25e''5\". where A is in kilograms and t is in hours. Find the rate of change of salt in 3 hours