<h3>
Answer: (n-1)^2</h3>
This is because we have a list of perfect squares 0,1,4,9,...
We use n-1 in place of n because we're shifting things one spot to the left, since we start at 0 instead of 1.
In other words, if the answer was n^2, then the first term would be 1^2 = 1, the second term would be 2^2 = 4, and so on. But again, we started with 0^2 = 0, so that's why we need the n-1 shift.
You can confirm this is the case by plugging n = 1 into (n-1)^2 and you should find the result is 0^2 = 0. Similarly, if you tried n = 2, you should get 1^2 = 1, and so on. It appears you already wrote the answer when you wrote "Mark Scheme".
All of this only applies to sequence A.
side note: n is some positive whole number.
Answer:
x1=3. x2=-2
Step-by-step explanation:
b=-1
a=1
c=-6
x1=3
x2=-2
Answer:
95% off
Step-by-step explanation:
because the percent u times by the actual price is the percent u have off
34 is the original number.
This is because 34 times 2 is 68 and 68 plus 3 is 71.
Yes, it is very important otherwise some teachers may count the problem wrong.
