Answer:
Well there aren't any options but a number line pointing right with the circle being empty (For example, ○) on the point -2.
The first 6 terms are 4, 12, 21, 31, 42 and 54
Step-by-step explanation:
- Step 1: Given f(n) = f(n-1) + (n+6) and f(1). Find the 6 terms by substituting in f(n)
⇒ f(1) = 4
⇒ f(2) = f(1) + (2+6) = 4 + 8 = 12
⇒ f(3) = f(2) + (3+6) = 12 + 9 = 21
⇒ f(4) = f(3) + (4+6) = 21 + 10 = 31
⇒ f(5) = f(4) + (5+6) = 31 + 11 = 42
⇒ f(6) = f(5) + (6+6) = 42 + 12 = 54
One cat has four paws, so there are 120/4=30 cats. If a "set" of cats is two uncool cats and three cool cats, there are five cats in a set, so there are 30/5=6 sets. Since each of the six sets contains three cool cats, there are 18 cool cats in the family.
Answer:
23/25
Step-by-step explanation:
hope this helped.