(a)
= 4n + 8
(b) row 13 has 60 seats
(a)
the sequence of seats is an arithmetic sequence whose n th term is
=
+ (n - 1 )d
where
is the first term and d the common difference
here the sequence is 12, 16, ....
with
= 12 and d = 16 - 12 = 4, thus
= 12 + 4( n - 1 ) = 12 + 4n - 4 = 4n + 8
(b)
calculate the number of rows n when 60 seats
solve 4n + 8 = 60 ( subtract 8 from both sides )
4n = 52 ( divide both sides by 4 )
n = 13 ← number of rows
Slope: (y2-y1)/(x2-x1)
(3-9)/(-1-2) = -6/-3 = 2
The rate of change is 2
Answer:
99 038.52 USD
Step-by-step explanation:
In order to solve this question we have to use the compound interest formula
A = P*(1+i)ˆn
A: final amount including principal
P: principal amount
i: interest per year
n: total number of years
A = 40000 (1+0.12)ˆ8
A = 99 038.52 USD
Answer:
8.333333333 or 25
/3
Step-by-step explanation: