A rectangular section of wilderness will be set aside as a new wildlife refuge. Its dimensions are 6 × 10^3 meters by 3 × 10^4 meters. Find the area of the land in square meters. Put your answer in scientific notation.

1 answer

To find the area of the rectangular section of wilderness, we use the formula for the area of a rectangle:

\[ \text{Area} = \text{length} \times \text{width} \]

Given the dimensions:

  • Length = \( 6 \times 10^3 \) meters
  • Width = \( 3 \times 10^4 \) meters

Now, we can calculate the area:

\[ \text{Area} = (6 \times 10^3) \times (3 \times 10^4) \]

Using the property of multiplying numbers in scientific notation, we multiply the coefficients (6 and 3) and add the exponents (3 and 4):

\[ \text{Area} = (6 \times 3) \times (10^3 \times 10^4) \]

Calculating the coefficients:

\[ 6 \times 3 = 18 \]

Calculating the powers of ten:

\[ 10^3 \times 10^4 = 10^{3 + 4} = 10^7 \]

Therefore, we combine these results:

\[ \text{Area} = 18 \times 10^7 \]

To express \( 18 \times 10^7 \) in proper scientific notation, we adjust it to be in the form \( a \times 10^n \) where \( 1 \leq a < 10 \). We can rewrite 18 as \( 1.8 \times 10^1 \):

\[ \text{Area} = 1.8 \times 10^1 \times 10^7 = 1.8 \times 10^{1 + 7} = 1.8 \times 10^8 \]

Thus, the area of the land in square meters, in scientific notation, is:

\[ \boxed{1.8 \times 10^8} \]