Title:
<h2>The year will be
.</h2>
Step-by-step explanation:
As per October 2009, the world's estimated population is 6.8 billion.
The population growth rate is 0.07 billion per year.
Hence, in x year, the population will increase 0.07x billion.
We need to find the time, after which the population will be 9.5 billion.
If we take x as the number of year that will be required, then we can represent it as
.
Answer:
It looks like ur doing complex conjugates sooooo the answer is 21 - 12i
They way you show work is
(3-4i)(1+5i) - (2-i) <—— use foil method on first 2 parentheses
= 3 + 11i - 20i ^2 - 2 + i ( remember i^2 = -1)
= 3 + 11i + 20 -2 + i
= 21 + 12i
If it takes 10 hours for 9 workers to mow 45 lawns, dividing the 45 lawns by 9 we see that in 10 hours one worker can mow 5 lawns. This means that in one hour, a single worker can mow 5/10=1/2 of a lawn
Answer: 3/10
Step-by-step explanation: times
