Please help me with this I really need help by today or ill get a 0 on my unit test and I suck at geometry so plz someone help me if I get this right I get an A in the class. Will give 50 points and brain list if right, pls only answer if you know!!
THE IMAGE IS USED FOR QUESTION 1-6
THE 2ND IMAGE IS USED FOR 7-8
There numbered 1-8!!

1..Find m∠ACB

2.Find m∠A

3.Find m∠EDW

4.Find m∠XCE

5.Find m< AD

6.Find m

Second image questions

7.m<1=40 <4= 80 explain one way to find m<3

7.m<1=40 <4= 80 explain one way to find m<2

c

step-by-step explanation:

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 ☺