Given the functions f(n) = 11 and g(n) = -2(n - 1), combine them to create an arithmetic sequence, an, and solve for the 31st term. (2 points)

Question

anonymous · Answer

an = 11 - 2(n - 1); a31 = -49
		
an = 11 - 2(n - 1); a31 = -51
		
an = 11 + 2(n - 1); a31 = 71
		
an = 11 + 2(n - 1); a31 = 73

anonymous · Answer

@ganeshie8

anonymous · Answer

@nincompoop

haseeb96 · Answer

what do you think which one is correct 
?
@xangelaax

anonymous · Answer

1 or 2 but idk how to find it out

haseeb96 · Answer

when we combine these functions we get 
11 -2(n-1)  ..... eq#1
now to find a31
put n=31 into eq#1
11-2(31-1)
11-2(30)
11-60
-49
is correct answer 
So 1 is correct answer

anonymous · Answer

thanks so much can you please help with 1 more?

haseeb96 · Answer

yes but post it in the new question and click on best response if you like my explanation

anonymous · Answer

okay lol

jiteshmeghwal9 · Answer

$$a_n=f(n)+g(n)$$$$a_n=11-2(n-1)$$$$a_{31}=11-2(31-1)$$

anonymous · Answer

thanks that makes sense

anonymous · Answer

i didnt mean to resend that ^^