9 ∙ 3 - 7 ∙ 9 2 + 4( 8 - 4)

-601

Step-by-step explanation:

So first you solve the equations in the parantheses.

8-4= 4 so its going to be

9x3-7x92+4(4)

You are going to multiply 4(4) and get 16

Now it's 9x3-7x92+16

You are going to multiply what needs to be multiplied now so:

9x3= 27 and 7x92=644

So it's:

27-644+16

It doesn't matter whether you do subtraction or addition first, whichever is the first equation so:

27-644= -617 then -617+16= -601

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.