Answer:
7
Step-by-step explanation:
Option 2
because x(x)=x^2 and x(-5)=-5x which means you get x^2-5x
In order to simplify the expression (b+11)2b, we need to use the concept of distributive property.
Distributive property:
The distributive property of multiplication over addition can be used when you multiply a number by a sum.
![a(b+c)=a*b+a*c](https://tex.z-dn.net/?f=a%28b%2Bc%29%3Da%2Ab%2Ba%2Ac)
Our expression is:
2b(b+11)
Applying distributive property here :
![2b(b+11)=2b*b+2b*11](https://tex.z-dn.net/?f=2b%28b%2B11%29%3D2b%2Ab%2B2b%2A11)
![=2b^{2}+22b](https://tex.z-dn.net/?f=%3D2b%5E%7B2%7D%2B22b)
Answer: ![2b^{2}+22b](https://tex.z-dn.net/?f=2b%5E%7B2%7D%2B22b)
Hi,
To find population of the city you have to multiply people per square mile (population density) and area.
![87 \times 3517 = 305979](https://tex.z-dn.net/?f=87%20%5Ctimes%203517%20%3D%20305979)
Answer: 305979 people live in the city.
Hope this helps.
r3t40