Question

what is the 10th term of expression to 2n-1

Answer 1

Answer:28

Step-by-step explanation:substitute n=1, a=1

d=3

a10=a+9d

1+9•3

=28

Answer 2

a1=2n-1
2×1-1=1
a2=2n-1
=2×2-1=3
a3=2×3-1=5
a1=1,d=2,n=10
an=a+(n-1)d
=1+(10-1)×2
=1+18
=19
an=19