Question 12 1/1 pt 52 897 Details
Perform a Reflection
Reflect the figure below over the line I = = 4.
904
19
18-
17
16
15
14
23
22
2
vo
9
20-19-18-07-16
14-13-15-17-10-9-8-7-6-54-3-2-2,
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
3
-5
-6
-6
9.
-10
12
13
14
16
17
18
-19
20+
Clear All Draw: Polygon

answer: i don't understand it

step-by-step explanation: sorry

answ5

step-by-step explanation:

u have to pay atttion to me

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 ☺

600,000,000,000, or 6e14

step-by-step explanation: