Answer: 0.004 (you can ask Siri this question and get the same answer)
<h3>
Answer: Choice A</h3>
What we do is simply replace every n with k+1. So (3n)^2 turns into (3(k+1))^2
We see that only choice A has the correct term mentioned on the left hand side, so this must be the answer.
The right hand side is treated the same way. We plug in n = k+1. Your teacher did a bit of algebraic manipulation to get what is shown for choice A.
You are partially correct :) 2^SQR(10) x SQR(10) = 20
The answer is just 20
Length is increased so the new length would be 1.1L
The width is decreased by p percent, which now becomes 1-P/100
The new area = 1.1l x (1-P/100)
The area decreases by 12 percent, so the new area = 0.88A
Noe you have 0.88A = 1.1L * (1-P/100)
Simplify to get 0.8 = 1-P/100
Solve for P to get 0.2
Multiply by 100 for the percent: 20%
The answer is C.
