To find the total area of the dog park and the community park combined, you need to add the two areas together:
- Area of Dog Park: \(3.49 \times 10^4\) yards
- Area of Community Park: \(1.6 \times 10^4\) yards
To add these two numbers, it's easier if they have the same exponent:
\[ 3.49 \times 10^4 + 1.6 \times 10^4 = (3.49 + 1.6) \times 10^4 \]
Now, perform the addition:
\[ 3.49 + 1.6 = 5.09 \]
Thus, the total area is:
\[ 5.09 \times 10^4 \text{ yards} \]
To express it in standard form, that equals:
\[ 5.09 \times 10^4 = 50,900 \text{ yards} \]
So, the total area of the dog park and community park combined is 50,900 yards.