Step-by-step explanation:
1.
a3= a1(r^n-1)
4/3= 3(r^3-1)
4/9= r²
2/3= r
a5= 3(2/3^5-1)
a5= 3(16/81)
a5= 48/81 or 16/27
2.
4= 8r
1/2= r
a5= 8(1/2)^4
a5= 8/16 or 1/2
3.
5/2 ÷ 2/5
5/2 × 5/2= 25/4
Copyright © 2024 EHUB.TIPS team's - All rights reserved.
Answers & Comments
Step-by-step explanation:
1.
a3= a1(r^n-1)
4/3= 3(r^3-1)
4/9= r²
2/3= r
a5= 3(2/3^5-1)
a5= 3(16/81)
a5= 48/81 or 16/27
2.
4= 8r
1/2= r
a5= 8(1/2)^4
a5= 8/16 or 1/2
3.
5/2 ÷ 2/5
5/2 × 5/2= 25/4