Plz help
Given f (x) = 3x^2 + 4x and g(x) = 2x^2 - x + 1 .

What is (f + g) (x) ?

1) 6x^2 - 4x + 1
2) x^2 + 5x - 1
3) -x^2 - 5x - 1
4) 5x^2 + 3x + 1

It is 4) which is

Step-by-step explanation:

Simplify step-by-step.

Combine Like Terms:

y = 2x

step-by-step explanation:

if you divide each number in the sequence, you'll see that they all have a multiple factor of 2. each number in the series, and any other numbers which may continue, will be multiplied by 2. therefore, y is the next number in the sequence, and x is the current one, so, our formula will be y = 2x.

46

step-by-step explanation:

given

height = 168 cm

formula

height =2.47*f+54.13

solution

168 = 2.47f + 54.13             subtract 54.13 from both sides

168 - 54.13   = 2.47f             combine

113.87 = 2.47f                     divide by 2.47

113.87 / 2.47 = f                   combine

46.1 = f  

answer: 46 cm