Answer:
It's a.
Step-by-step explanation:
(a - 2b)^2 + 8ab
= a^2 - 4ab + 4b^2 + 8ab
= a^2 + 4ab + 4b^2.
((a + 2b)^2 = a^2 + 4ab + 4b^2.
Distribute
remember
a(b+c)=ab+ac
2(2.5q+8)=2(2.5q)+2(8)=5q+16
1-5q+5q+16
1+0+16
17
Answer:
x+9
Step-by-step explanation:
the perimeter of any polygon is the sum of all the sides
Answer:
5.25
Step-by-step explanation:
1. 19 + 1/4x =40
2. 1/4x=40-19
3. 1/4x=21
4. x= 21/1/4
5. x= 5.25
The traveling time would be 470,588.235294km/hr