Question

R(4) = 3000 - 500 * 1.4^4

Answer 1

To calculate \( R(4) \), we substitute \( 4 \) into the equation:

\[
R(4) = 3000 - 500 \times 1.4^4
\]

First, calculate \( 1.4^4 \):

\[
1.4^4 = (1.4 \times 1.4 \times 1.4 \times 1.4) = 2.78464 \quad (\text{using a calculator})
\]

Now substitute that value back into the equation:

\[
R(4) = 3000 - 500 \times 2.78464
\]

Now calculate \( 500 \times 2.78464 \):

\[
500 \times 2.78464 = 1392.32
\]

Finally, substitute this value back into the equation:

\[
R(4) = 3000 - 1392.32 = 1607.68
\]

Thus, the result is:

\[
R(4) = 1607.68
\]