The key concepts used to convert units between different systems of measurement are shown without the final two steps. 1. Identify the units of measure to be converted.
2. Write conversion factors.
3. Cancel units.
4.
5.

Which two steps will complete the list correctly?
4. Divide the original measurement by the conversion factors.
5. Check for reasonableness.
4. Multiply the original measure by the conversion factors.
5. Simplify the answer.
4. Multiply the original measure by the conversion factors.
5. Check for reasonableness.
4. Divide the original measure by the conversion factors.
5. Simplify the answer.

its 4 because 2 times 2 is 4, if you double the number two you get four

i found two solutions,   n = 2 • ± √3 = ± 3.4641

step-by-step explanation:

quit

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 ☺