Answer:
Step-by-step explanation:
Factor the sum of cubes
a³ + b³ = (a+b)(a² - ab +b²)
= 2a² - 2ab + 2b²
a³ + b³ + 6ab = 2a² + 4ab + 2b²
= 2(a² + 2ab +b²)
= 2(a+b)²
= 8
19 heavy equipment operators and 20 general laborers
Yes..........................
Answer:
1. 23/20 or 1 whole and 3/20
2. 3/10
3. 4/3 or 1 whole and 1/3
4. 1/15
5. 1/2
6. 3/10
