509 ÷ 13 = 36.36
There are about 36 floors.
Answer: 36 floors.
Between 2 and 3, should be somewhere before .5
4-x I know this because my teacher just went over this problem
Good evening ,
Answer:
Is his formula correct and how do you know : <em>Yes</em>
Is it an explicit or recursive formula : <em>explicit </em>
Step-by-step explanation:
an = a1 + (n-1)r
a1 = 5
r = 8-5 = 3
Then an = 5 + 3(n-1).
:)