Answer:
Please translate this to english for my help
Step-by-step explanation:
We have ax - bx = 1;
Then (a - b)x = 1;
If a - b is not 0, then x = 1 / (a-b);
27 has to be C
I can't see the whole question for 28 and 29
Answer: The first one is Commutative Property
The second one is associative property
Step-by-step explanation:
Answer:
=> 2.7 × 10³ × 8 × 10² / 4 × 10^-6
=> 2.7 × 8 × 10^3+2+6 /4
=> 5.4 × 10¹¹
5.4 × 10^11
