A₁ = 9
a₂ = 9+2 → a₂ = a₁ + 2. Since it's an AP, d, the common difference is 2
1) Then the recursive formula is :
a(n) = a(n-1) + 2
2) Explicit formula:
It's an AP, with first term a₁, d= common difference and n = number of term, which is the number of rows in this problem.
the value of the nth term is given by the formula is:
value of nth term = a₁ + (n-1).d
3) Number of seats in the 12th row:
9 + (12-1).2 = 31 seats
Answer:
$13.50 (discount price)
$1.50 (discount amount)
Step-by-step explanation:
$15 x 10% =
$15 x 0.1 = $1.50
$15 - $1.50 = $13.50
Subtract the sum of the two angles from 180 degrees. The sum of all the angles of a triangle always equals 180 degrees. Write down the difference you found when subtracting the sum of the two angles from 180 degrees. This is the value of X.
Answer:
C
Step-by-step explanation:
Answer choices are....
A. –4
B. –1
C. 1
D. 4
I need help ASAP Pleaseee