Determine whether the ordered pair is a solution to the inequality. _}' :1 x3 - 6 (a) {1, 8} (b: {5, 1) (c) {7, -21) Part: 0/ 3 Part 1 of3 (a} Is the ordered pair {-1, 8} a solution to the inequality? Graph the solution set. If there is no solution, indicate that the solution set is the empty set. 2x+5y5 3x4_v24 Part: 0/ 2 Part 1 of2 . . . . . . 39 . . . Painful bone metastases are common In advanced prostate cancer. PhySIcians often order treatment Wlth strontium39 ( Sr], a radionuclide Wlth a strong . . . . . . . - 89 afnityr for bone tissue. A patient is given a sample containing 4 mCl of Sr. Part: I] I 2 Part 1of2 k (a) If 30% of the 39Sr remains in the body after 85 days, write a function of the form 52 (I) = 909 r to model the amount Q (I) of radioactivity in the bodiir t days after the initial close. Round the value of k to ve decimal places. Do not round intermediate calculations. gm = m U {, Part:1/2 Part 2 of2 . . . . 89 . . . . (b) What is the biological halflife of Sr under this treatment? Round to the nearest day. Do not round intermediate calculations. The biological halflife of 39Sr is approximately I I days. X S