Suppose a drop of dye, with a concentration of 1 unit, is dropped at latex: x=0x = 0 at latex: t=0t = 0. at latex: t=5t = 5, the variance latex: (\sigma^2)( σ 2 ) of the concentration curve is found to be 20. estimate the diffusion coefficient latex: (d)

1. preform the indicated operation. then estimate to see whether the proposed result is reasonable. 811.1 - 8.039 803.071 803.061 803.161 831.061 2. the ordered pair (1, 2) lies in which quadrant? quadrant ii quadrant iv quadrant iii quadrant i 3. sean tries to drink 3 liters of water every day how my millimeters of water does he drink in a day? 0.3 ml 0.003 ml 3,000 ml 30 ml 4. find the least common multiple. (lcm). 10, 36 5 180 20 360

This is different from the first one can someone me

Emily is entering a bicycle race for charity. her mother pledges $0.90 for every 0.75 mile she bikes. if emily bikes 18 miles, how much will her mother donate?