Answered

-17,-12,-7,....,33 find n

Sagot :

Arkrayid
an=a1+(n-1)d
33=-17+(n-1)5
33=-17+5n-5
33=-22+5n
33+22=5n
55=5n
divide both sides by 5
55÷5=5n÷5
11=n

hope this will help :)