(2 points) If 4,000 invested at time t=2 accumulates to 6,743 at time t=8 using a force of interest at time t defined by t={0.003t2+0.02d0t5t>5 where d is a constant, find d. Round to 4 decimal places. (2 points) If 4,000 invested at time t=2 accumulates to 6,743 at time t=8 using a force of interest at time t defined by t={0.003t2+0.02d0t5t>5 where d is a constant, find d. Round to 4 decimal places