Which formula defines the sequence f(1) = 2, f(2) = 6, f(3) = 10, f(4) = 14, f(5) = 18? a. f(1) = 2, f(n) = 6+ f(n-1) for n > (or equal to) 2
b. f(1) = 2, f(n) = 4 + f(n-1) for n > (or equal to) 2
c. f(1) = 2, f(n) = 2 + f(n-1) ffor n > (or equal to) 2
d. f(1) = 6, f(n) = 4 +f(n-1) for n > (or equal to) 2

answer: idk

step-by-step explanation:

i believe the correct answer is option 4.principalities were small territories that were run by russian rulers.

which statement correctly defines principalities in northern asia in the 1200s? principalities were small territories that were run by russian rulers.

hope i could ! : )

the answer is a.

step-by-step explanation:

in three games of golf, alex shot two under par four times.

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15