To find the total area of the dog park and the community park combined, you simply add the two areas together:
- Area of the dog park: \(3.49 \times 10^4\) yards
- Area of the community park: \(1.6 \times 10^4\) yards
First, we need to ensure both areas are expressed in the same powers of ten. In this case, they are both already in terms of \(10^4\).
Now perform the addition:
\[ 3.49 \times 10^4 + 1.6 \times 10^4 = (3.49 + 1.6) \times 10^4 \] \[ = 5.09 \times 10^4 \text{ yards} \]
Thus, the total area of the dog park and community park combined is \(5.09 \times 10^4\) yards.