25) if f(x) = 2x-3 and g(x) = 2x + 5, what is the value of (g • f)(4)?
a) 3
b) 6
c) 3.5

(g • f) (4)  = 15

Step-by-step explanation:

Here, f(x)  =   2x -3

g(x) = 2x +5

Now, (g • f)(4)  = g (f(4)) = g(2(4) -3)  = g(5)

now, g(5) = 2 (5)  + 5 = 15

So, (g • f) (4)  = 15

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11

answer: 4 (:

step-by-step explanation: