I got this same question on a test, the answer is A.
The last option: In his recursive formula, he should have the term an−1 instead of −4 to get an=an−1−3.
Answer:
Well since my shoe is 8.5 inches, you will take 4 whole shoes to make a meter. Therefore, you will have to take 4,000 shoes to make a kilometer because 1 kilometer=1000. (:
Step-by-step explanation:
The area of a square is S^2 with S as one side. To find the length of the side, simply work the formula backwards. The square root of 400 is 20. Hope this helps! :)