If f(x)=5x-4 and g(x)=4x+1, find (f-g)

B

Step-by-step explanation:

What this tells you is to take 4x + 1 away from 5x - 4

Givens

f(x) = 5x - 4

g(x) = 4x + 1

Formula

(f - g)(x)

Solution

(f - g)x = 5x - 4 - (4x + 1)                remove the brackets

(f - g)x = 5x - 4 - 4x - 1                 Collect like terms

(f - g)x = 5x - 4x - 4 - 1

(f - g)x = x - 5

Answer

B

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3

the ratio of grapes to blueberries she should use is 12: 3

step-by-step explanation:

if mandie is making 15 cups of fruit salad, the ratio of grapes to blueberries she should use is 12: 3.