Question

4.
Find the eleventh term in this arithmetic sequence: .5, .7

Answer 1

tried it?

Answer 2

\[d=t1-t2=7-5=2\]
\[d=2\]
\[a=5\]

\[T(n)=a+(n-1)d\]
\[=5+(11-1)(2)\]
\[=5+10(2)\]
\[=5+20\]
\[=25\]


Am i right?

Answer 3

.5,.7,.9,.11,.13,.15,.17,.19,.21,.23,.25

Answer 4

\[T(11)=25\]