Which of the following sequences is an arithmetic sequence? 1, 1/2, 0, - 1/2

Answer 1
Choose...
48, 24, 12, 6, 3, ...

Answer 2
Choose...
1, 4, 9, 16, 25, 36

Answer 3
Choose...
3x, x, x/3, x/9

Answer 4
Choose...
1, 0, 1, -1, -2, -3,

Answer 5
Choose...
1/2, 1/3, 1/4, 1/5, ...

Answer 6
Choose...
3, 7, 11, 15, 19

Answer 7
Choose...
9.5, 7.5, 5.5, 3.5, …

Answer 8
Choose...
-2, 4, -8, 16, …

Answer 9
Choose...
4, 16, 64, 256

Answer 10
Choose...

the answer is d

hope this

1. sometimes

2.   never

3   .08c = 7.50+.05c   250 pages

step-by-step explanation:

1.   sometimes

the theoretical probability of rolling a 1 is 1/6.   perhaps you got really lucky and never rolled a 1   in those 60 times.   your experimental probability is 0.   or perhaps you rolled a 1   20 times.   your experimental probability is 20/60 is 1/3.     it really just depends on how you rolled in that experiment.

2.   never

the probability of the event occurring is 1.   that is being 100 % sure it will happen.   that is the maximum amount of confidence we have.

3.   no customer card cost:   .08 times number of pages

customer card cost:   7.50 + .05 times number of pages

we want to find when it costs the same amount, so we will set these equal

let c = number of pages

.08c = 7.50+.05c

subtract .05c from each side

.08c-.05c = 7.5+.05c-.05c

.03c=7.5

divide each side by .03

.03c/.03 = 7.5/03

c =250  

the cost is the same at 250 pages