Answer:
Step-by-step explanation:
d^4-81
(d^2)^2-(9)^2
Using formula
(d^2+9)(d^2-9)
Answer:

Step-by-step explanation:
see the box that means the minimum size must be bigger than 30 or 30° or a and c band c are both 30 each so the total linear distance is smaller than if 30+30 is used for ACB calculation so by default its AB=30square root 2 plus i used a calculator
Answer:
The best answer has twice as many people as another age group at B. 15-25
Answer:
6-11i
Step-by-step explanation:
(2 + 7i) - (6 + 8i) + (10 - 10i)
Distribute the minus sign
(2 + 7i) - 6 - 8i + (10 - 10i)
Combine like terms
2-6 +10 +7i-8i-10i
6 -11i