f(x) = (x - 4)^2 - 5
Vertex (4 , -5)
This function opens upward and has min. value = -5
So range y >= - 5
So answer is A. -5 <= f(x) < ∞
<u>The angle based on the diameter is always right</u>
Then <ABC=90 and ∠BAC=∠ACB=45° ; and ∠BCD=180-45=135 then x=(180-135):2=22,5°
Answer:
(g o f)(x) = x
Step-by-step explanation:
Given the functions f(x) = 2/x and g(x) = 2/x
(g o f)(x) = g(f(x))
g(f(x)) = g(2/x)
Replace x with 2/x in g(x)
g(f(x)) = 2/(2/x)
g(f(x)) = 2 * x/2
g(f(x)) = 2x/2
g(f(x)) = x
Hence the composite function g o f)(x) is x
Answer:
x=2
Step-by-step explanation:
9x+5>23
-5. -5
9x>18
x>2
4(2)-4<8
8-4<8
4<8