The answer should be C, if my math is correct!
Hope I could help :)
In plain and short, what's 2/3 of 7/8? well, is just their product.
7 with 13 over 125 this is the mixed number form.
The angles of a triangle always equal 180.
You do 180 - 80 - 45. X = 45.
Answer:
c.) aₙ = 5 × 4ⁿ⁻¹
Explanation:
Geometric sequence: aₙ = a(r)ⁿ⁻¹
where 'a' resembles first term of a sequence, 'r' is the common difference.
Here sequence: 5, 20, 80, 320,...
First term (a) = 5
Common difference (d) = second term ÷ first term = 20 ÷ 5 = 4
Hence putting into equation: aₙ = 5(4)ⁿ⁻¹
