Answer:
1/6k(k + 1)(2k + 1)
Step-by-step explanation:
(1 / 6) (k + 1) ( [k + 1] + 1) (2 [k + 1] + 1) =
(1 /6) ( k + 1) (k + 2) (2k + 3) =
(1/6) ( k^2 + 3k + 2)(2k + 3) =
(1 / 6) (2k^3 + 6k^2 + 4k + 3k^2 + 9k + 6) =
(1 /6) (2k^3 + 9k^2 + 13k + 6)
Where's the question 12 a =
Answer:
The population is 3,000 to the nearest thousand
Step-by-step explanation:
Here, we want to calculate population density
Mathematically;
Population density = population/ area
form the question;
population = 4.2 * 10^5
area = 1.32 * 10^2 square miles
Population density = (4.2 * 10^5)/(1.32 * 10^2)
3.2 * 10^3
which as a whole number will be 3200
To the nearest thousand, this is 3000