Answer:
How do you find the term of a sequence?
The formula for finding any term in the sequence is Un (or Ur) = the 1st term + the term you are trying to find minus 1 (if you were finding the 5th term it would be 5 -1) x d (the common difference).
Step-by-step explanation:
R equals 0.5 hope this helped
Answer:
The first term of the sequence is:
Step-by-step explanation:
Given the sequence
aₙ = (-1)ⁿ · 3n²
substituting n = 1 to determine the first term
a₁ = (-1)¹ · 3(1)²
a₁ = (-1)¹ · 3(1)²
Applying the exponent rule:
a₁ = -1 · 3(1)
a₁ = -1 · 3
a₁ = -3
substituting n = 2 to determine the 2nd term
a₂ = (-1)² · 3(2)²
a₂ = 1 · 3(4)
a₂ = 12
substituting n = 3 to determine the 3rd term
a₃ = (-1)³ · 3(3)²
a₃ = -1 · 3(9)
a₃ = -1 · 27
a₃ = -27
substituting n = 4 to determine the 4th term
a₄ = (-1)⁴ · 3(4)²
a₄ = 1 · 3(16)
a₄ = 1 · 48
a₄ = 48
Therefore, the first term of the sequence is:
Answer:
both of your answers are b
Step-by-step explanation:
20. difference means subtract
21. assosiative property has to deal with three numbers while communitive is 2 numbers
Answer:
12.6 cm
Step-by-step explanation:
Given:
m<AOB = θ = 120°
Diameter (d) = 12 cm
Required:
Length of arc AB
Solution:
Length of arc AB = θ/360 × πd
Plug in the values
Length of arc AB = 120/360 × π×12
≈ 12.6 cm (nearest tenth)