F(n)=2n+1
g(n)=3n
Find f(n)+g(n)

Step-by-step explanation:

Step-by-step explanation:

We want to find f(n) + g(n) . Basically, we have to find the sum of f(n) and g(n).

We know that:

Therefore, we can substitute 2n+1 in for f(n) and 3n in for g(n)

Combine like terms. The terms 3n and 2n both have a "n" so they can be combined.

f(n)+g(n) is equal to 5n+1

the least common denominatore of 7 and 2 is 9

step-by-step explanation:

7+2=9

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6