Question

Exponential decay finding r 48=64(1-r)^10

Answer 1

\[(1-r)^{10} = \frac{48}{64}\]

Answer 2

\[(1-r) = \sqrt[10]{\frac{48}{64}}\]

Answer 3

\[(1-r) = +- \sqrt[10]{\frac{48}{64}}\]

Answer 4

then rearrange, its easy