This is an Arithmetic Progression with 1st term 11 and common difference d=6
Number of Rows Number of seats Common difference " d"
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1st a₁ = 11
2nd a₁+d =17 d =2nd - 1st = 6
3rd a₁ +2d = 23 d =3rd - 2nd = 6
4th a₁ +3d = 29 d= 4th - 3rd = 6
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nth ROW a(n) = a₁ + (n-1)d
18th ROW a₁₈ = 11 + (18-1).6 = 11+(17)(6) = 113
General equation to predict the number of seat an the nth row:
Number of seats in nth row = a₁ + (n-1).d
Answer:
I would need to be able to see the expressions available.
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
x = –3 and x = 2
Answer: A is 45 degrees, B is 45 degrees, C is 90 degrees.
Step-by-step explanation: A triangle is 180 degrees, and those three numbers add to that. This would be considered a right triangle due to the 90 degree angle.
