Determine whether the graph shows a positive correlation, a negative correlation, or no correlation. If there is a positive or negative correlation, describe its meaning in the situation. Women in the Army A graph titled Women in the Army has year on the x-axis, from 1981 to 2001 in increments of 10, and percent on the y-axis, from 0 to 16 in increments of 2. Points are at (1981, 9.3), (1991, 11.3), (2001, 15.8). Year Source: Time Magazine, March 24, 2003 a. positive; as time goes on, more women are in the army.
b. no correlation
c. negative; as time goes on, fewer women are in the army.
d. negative; as time goes on, more women are in the army.

the solution is 12x-6y

i believe the answer is the polygon, heptagon.

step-by-step explanation: so we look at the formula un = a + (n-1)d

un is the amount of seats

n is the nth term aka row number

a is the original sequence/row number

d is the difference between each term

so in this a=22 d=6 and n can remain as n because we are simply formjng a rule

lets put these in the equation

un=22+(n-1)(6)

this is your answer to part a

however

lets double check that this is correct, we'll try putting it into the second term

un=a+(n-1)d

u2=22+(2-1)(6)

u2=22+6

u2=28

as the question said the second row has 28 seats so now we know the formula we made is correct.

as for part b

un=a+(n-1)

its asking us to find a row with 100 seats.

remember un was the amount of seata so all we do is substitute this in.

un=100 a=22 d=6

un=a+(n-1)d

100=22+(n-1)(6)

so now we simplify to find n which is the row number.

100-22=22+(n-1)(6)-22

78=(n-1)(6)

78/6=(n-1)(6)/6

13=n-1

13+1=n-1+1

14=n

so now we know that in the 14th row there is 100 seats.

hope this and that you understood! its my first time using the app or anyone out on here : p its also me to revise so a bunch! ask more questions if you dont understand ☺

- (2, -7)

- lines r and s and lines t and u must be parallel