Compute the exact value of the function for the given x-value without using a calculator. Show your work for full credit. (2 points) f(x) = 7* for x = 2 5. The decay of 742 mg of an isotope is described by the function A(t)= 742e-0.03t, where t is time in years. Find the amount left after 84 years. Round your answer to the nearest mg. Show all of your work for full credit. (2 points) B i U Font Family AAA = - :E in 4. Determine the function which corresponds to the given graph. (3 points) -10 I 10- -10 The asymptote is x = -3. 10 X BU Font Family - AA - A FE E : 0 11 5. Use the product, quotient, and power rules of logarithms to rewrite the expression as a single logarithm. Assume that all variables represent positive real numbers. (2 points) 2log x + 4log y BiU Font Family - AA A A 0 SED in 5. Use a calculator to find an approximate solution to the equation. Round any intermediate work and steps to three decimal places. Show all of your steps in solving the equation for full credit. (2 points) 6ln (x + 2.8) = 9.6 BU Font Family AA A = E E GED 20. Find the exact solution to the equation. Show your work for credit. (1 point) 4(12-4x) = 256 BU Font Family AA A ||| O