I need help on how to understand this problem

1/6.2

Step-by-step explanation:

1/(2+3 square root 2)

2+4.24264068712=6.24264068712

6.24264068712 Rounded to the nearest tenth is 6.2

1/6.2

Hope this helps.

answer: 20

step-by-step explanation:

answer: - (a)

(b) 88 seats

step-by-step explanation:

given: in an auditorium, there are 22 seats in the first row and 28 seats in the second row.

thus first term=

second term=

the number of seats in a row continues to increase by 6 with each additional row.

⇒d= 6

a) given formula :

b)   let the number of seats (n) = 12

substitute n=12 in the explicit rule formed in (a)

∴there are 88 seats in 12 rows.