The explicit rule for an arithmetic sequence is a, -87+(-1.4)(n-1) what is the value of the 47th term? round to them
tenth, if necessary
557
45.6
65.8

There is typo error in the question. Here is the corrected question:

The explicit rule for an arithmetic sequence is . What is the value of the 47th term? Round to the nearest tenth, if necessary.

A. –55.7

B. –26.4

C. 45.6

D. 65.8

-55.7

Step-by-step explanation:

Given:

The explicit rule for the given arithmetic sequence is:

Now, the 47th term is nothing but the value of 'n' as 47.

Plug in the value of 'n' as 47 in the above rule and determine the 47th term represented by . This gives,

Therefore, the 47th term of the given arithmetic sequence is -55.7. So, the first option is correct.

The graph's vertex would move 4 to the right and would become twice as wide.

Step-by-step explanation:

We can tell this because the x value of the vertex is the constant inside the parenthesis. In this case, the number changes from 11 to 15, which means it moves to the right by 4.

And with the 2 outside of the parenthesis instead of inside, it becomes more wide (since the 2 is not being squared).