Answer: 45,697,600
<u>Step-by-step explanation:</u>
There are 26 letters in the alphabet and numerals to choose from. There is nothing that says that letters and numbers cannot be repreated. So,
X X X X - Y Y
= 26·26·26·26·10·10
= 26⁴(10)²
= 45,697,600
Yes, the sequence displays exponential behavior. The growth rate is the same between any two terms. The growth rate is the same as the percent of increase. Find the amount of change and divide by the original amount:
(3-1)/1 = 2/1 = 2
(9-3)/3 = 6/3 = 2
(27-9)/9 = 18/9 = 2
If you have a whole number move the number of exponents in 10 and move left. If you have a decimal, and the 10 is negative exponent, move to the write.
