Question

The recursive formula for an arithmetic sequence is an = an-1 + d. If the common difference is -13 and a3 = 4, what is the value of a4?

A. 9
B. -9
C. -17
D. 17

Answer 1

how did you go from slope to this? o.O

Answer 2

This is all my second semester work that i have to finish in like 3 days... xD i got an extension on it I just need help finishing stuff.

Answer 3

why is this stuff hard?

Answer 4

not hard just more andvanced is like jumping from kinderganrden to 3rd grade

Answer 5

lol ok

Answer 6

can u help me?

Answer 7

hold on lol I'm looking at a tutorial (I don't remember this that well this is from the beginnings of pre-algebra and I'm in algebra 2)

Answer 8

i dont really know much about this just want to get through it and on to the next thing

Answer 9

i know but I don't remember how to do this how can I give you the answer? lol just ask something else and then come back to this maybe by that time I'll have the answer

Answer 10

i can't move farther until that questions done

Answer 11

OMG lol I drowned in a cup of water with this question XD
http://www.regentsprep.org/regents/math/algtrig/atp2/arithseq.htm
according to that website all you had to do is add 4+-13=-9

Answer 12

Thanks for the help!! :)

Answer 13

np was it right?

Answer 14

yes
wanna help me with the next one?

Answer 15

sure

Answer 16

Which of the following is the graph of an arithmetic sequence whose first term is 0 and whose common difference is 0.5?

Answer 17

just tag me

Answer 18

ok

Answer 19

Denver, the capital of Colorado, famously has an altitude of one mile above sea level. The state capitol building has a long concrete stairway going up to it from the street, and one of the steps is marked as being exactly one mile above sea level. This is shown in the photograph below.



One mile = 63,360 inches, and the risers of the steps of the capitol building are 6 inches high. Barry is visiting the capitol, and as he climbs up from the one-mile step, his altitude above sea level, in inches, is given by the following sequence:

63,360, 63,366, 63,372, 63,378, 63,384, ...

What is Barry's altitude above sea level, in inches, when he is standing on the 55th step above the one-mile step (counting the one-mile step itself as step #1)?

A. 63,702
B. 63,696
C. 63,684
D. 63,690

Answer 20

@Daniellelovee

Answer 21

ugh so many words -.-'

Answer 22

Hn = H1 +8(n - 1)
Use that formula and replace

Answer 23

ok hold on

Answer 24

ok

Answer 25

do you know how to replace the numbers into the formula?

Answer 26

@Tallan

Answer 27

back and not really no

Answer 28

lol is ok I'll do (lol you always me write the formula)
H(55) = 63360 + 8(54)

Answer 29

now just solve

Answer 30

63792 is what I got.

Answer 31

you are correct

Answer 32

but thats none of the answers?

Answer 33

then give me options lol

Answer 34

A. 63,702
B. 63,696
C. 63,684
D. 63,690

Answer 35

alright hold on let me check

Answer 36

ok

Answer 37

ok sorry try by changing 8 to 6

Answer 38

C

Answer 39

yeah that is what I think

Answer 40

it was right. :D

Answer 41

great :)

Answer 42

any more questions?

Answer 43

nope not at the moment.

Answer 44

alright