To find the width of the park, you need to divide the area of the park by the length of the park.
Given:
- Area = \( 1.36 \times 10^8 \) ft²
- Length = \( 1.6 \times 10^4 \) ft
Now, divide the area by the length:
\[ \text{Width} = \frac{\text{Area}}{\text{Length}} = \frac{1.36 \times 10^8}{1.6 \times 10^4} \]
To simplify this, we can divide the coefficients and subtract the exponents:
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Divide the coefficients: \[ \frac{1.36}{1.6} = 0.85 \]
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Subtract the exponents: \[ 10^{8 - 4} = 10^4 \]
Now, combine the two results:
\[ \text{Width} = 0.85 \times 10^4 \]
To express this in scientific notation, we can rewrite \( 0.85 \) as \( 8.5 \times 10^{-1} \):
\[ \text{Width} = 8.5 \times 10^{-1} \times 10^4 = 8.5 \times 10^{4 - 1} = 8.5 \times 10^3 \text{ ft} \]
Therefore, the width of the park is \( 8.5 \times 10^3 \) ft.
From the provided responses, the correct answer is:
8.5×103 ft.