19.) Least to greatest:
Luxembourg
Singapore
Australia
Egypt
Brazil
Answer:
1/125, 1/625, 1/3125
Step-by-step explanation:
a8=25*(1/5)^7=25/78125=1/3125
Step-by-step explanation:
1\5 ÷3/7=7/15
3/7 multiply by 7/15=1/5
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
5x2(3x-1)+2(3x-1)factoring furhter gives(5x2+2)(3x-1)
