I’m confused what this is. HELP! Only do 4.

4. 54, -18, 6, -2

First term a₁=54

common ratio  r=-18/54 = 6/-18 = -2/6 = -1/3

Recursive form:

a[1]=54

a[n] = (-1/3) a[n-1]   for n>1

Explicit formula:

13

step-by-step explanation:

distance formula is d=√(x2-x1)^2   +   (y2-y1)^2

step-by-step explanation:

a cube has 6 sides

the probability of getting 5 on the first cube is 1/6 since only one side of the cube has 5 on it.

there are 3 sides of the cube with even number on it [2,4,6]

therefore the probability of getting even number is 3/6

for both events to happen together, the probability would be

1/6 x 3/6 = 12/36

which simplifies to 1/12