Question

R(3)= 3000 - 500 * 1.4^3

Answer 1

To evaluate \( R(3) = 3000 - 500 \cdot 1.4^3 \), we first need to calculate \( 1.4^3 \).

Calculating \( 1.4^3 \):
\[
1.4^3 = 1.4 \times 1.4 \times 1.4
\]

Calculating \( 1.4 \times 1.4 \):
\[
1.4 \times 1.4 = 1.96
\]

Now multiplying by \( 1.4 \):
\[
1.96 \times 1.4 = 2.744
\]

So, \( 1.4^3 = 2.744 \).

Now, substituting this back into the equation:
\[
R(3) = 3000 - 500 \cdot 2.744
\]

Calculating \( 500 \cdot 2.744 \):
\[
500 \cdot 2.744 = 1372
\]

Now substituting this value back:
\[
R(3) = 3000 - 1372
\]
\[
R(3) = 1628
\]

Thus, the final result is:
\[
R(3) = 1628
\]