The second one because the answer to the first one is a two digit number and the answer to the second is a one digit number, so #2 only uses two 2-digit numbers
Answer:
The number of people that received copies of the letter at the twentieth stage is<em> 9.537 × 10¹³ </em>.
Step-by-step explanation:
Using the discrete model,
a_k = r a_(k-1) for all integers k ≥ 1 and a₀ = a
then,
aₙ = a rⁿ for all integers n ≥ 0
Let a_k be equal to the number of people who receive a copy of the chain letter at a stage k.
Initially, one person has the chain letter (which the person will send to five other people at stage 1). Thus,
a = a₀ = 1
The people who received he chain letter at stage (k - 1), will send a letter to five people at stage k and thus per person at stage (k - 1), five people will receive the letter. Therefore,
a_k = 5 a_(k - 1)
Thus,
aₙ = a rⁿ = 1 · 5ⁿ = 5ⁿ
The number of people that received copies of the letter at the twentieth stage is
<em>a₂₀ = (5)²⁰ = 9.537 × 10¹³ copies</em>
Step-by-step explanation:
the equation of line is given by;
y-y1=m(x-x1)
The answer is c hope it helps:)
Solving 
we get 
Option A is correct.
Step-by-step explanation:
We need to find the result of
We need to remove i from the denominator. For removing i Multiplying and dividing by 2-3i:
Solving:
So, solving we get
Option A is correct.
Keywords: Complex numbers
Learn more about Complex numbers at:
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