Answer:
Step-by-step explanation:
=7 (1+11+111+1111......n)
=7/9 (9+99+999+9999....n)
=7/9 ((10-1)+(10^2-1)+(10^3-1)+....n)
=7/9 ((10+10^2+10^3...n)-(1+1+1+1.....n))
=7/9 ((10 (10^n-1)/(10-1))-n)
Hello :
<span>–9.5 + 6x ≥ 42.1
6x </span>≥ 42.1 + 9.5
6x ≥ 51.6
x ≥ 51.6/6
x ≥ 8.6
using interval notation: <span>[8.6 ; +∞[ </span>
Answer:
1
Step-by-step explanation:
We are given that

Numbers are in radians
Substitute x=-1

Substitute x=-0.25

Substitute x=-0.01

Substitute x=-0.005

Substitute x=0.005

Substitute x=0.01

Substitute x=0.25

Substitute x=1

Therefore, 
Answer:
number 3 or 2
Step-by-step explanation: