Answer:
b. 2.9!
Explanation:
There are is a mistake in the question.
Suppose the group consist of 10 kids and 2 adults, the number of ways in which they can form the line is:
= 2! 10!
= 2× 1× 10!
= 2.10!
But since that is not in the given option.
Let assume that the group consists of 9 kids and 2 adults, the number of ways in which they can form the line is:
No of ways the kids can be permutated = 9 ways
No of ways the adult can be permutated = two ways.
Thus; the number of ways in which they can form the line = 2! 9!
= 2 × 1× 9!
= 2.9!
Answer:
Types of energy sources include;
- Geothermal energy
- Solar energy
- Wind power
- Nuclear energy
- Hydropower
- Coal burning
- Natural gas
- Biomass energy
The
replace text as you type is an option in the AutoCorrect tool that enables the
user to add or delete words that do not follow abbreviation rules. Moreover, this
is a convenient way to use especially if you are dealing with long string of
words that only needs abbreviation.
