<u>Answer:</u>
<em>Contagious diffusion</em>
<u>Explanation:</u>
As the definition suggests, Contagious diffusion is the rapid invasive diffusion of a trait through the same culture.
<em>Contagious diffusion is proportion to the effect called local distance effect.</em>
It is the process of spread of a disease or religious beliefs or values in a culture starting from a fixed place or point which is usually a origin source to several persons.
<em>Contagious diffusion mapping method is used in order to take preventive actions to identify more risky area and take actions effectively.</em>
5% of $20 is 10 or $10.
Because $20x50%=10 or $10
So the sale tax is $10 and I believe the total cost of the shirt is also $10
Answer: c
Explanation:
Jeannette Pickering Rankin was an American politician and women's rights advocate, and the first woman to hold federal office in the United States. She was elected to the U.S. House of Representatives as a Republican from Montana in 1916, and again in 1940.
Answer:
From the first generation = 2 ancestors.
From the second generation = 4 ancestors or (2)^2 ancestors.
From the third generation = 8 ancestors or (2)^3 ancestors.
We can infer from the given data, each consecutive generation possesses twice the number of members.
The sum will be:
2 + 4 + 8 + 16 + ... + (2)^39
To evaluate the amount of ancestors, let's employ the formula for the summation of a geometric sequence.
(Geometric sequence shows the sequence of numbers that varies by a specific factor. This factor is specifically known as a ratio).
Formula for Geometric sequence:
S = (a1) × 1 - (r)^n
--------------------------
1 - r
Take:
S -> sum
a1 -> first member of a sequence
r -> ratio
n -> number of elements
In this question, our:
a1 = 2; r = 2; and n = 39
S = (2) × 1 - (2)^39
-------------------------
1 - 2
S = 1,099,511,627,777
