Answer:
Option 3 - f(x)= 4x, 
Step-by-step explanation:
To find : Which two functions are inverses of each other?
Solution :
Two functions are inverse if 
Now, we find one by one
1) f(x)= x, g(x) = -x
Not true.
2) f(x)= 2x, 
Not true.
3) f(x)= 4x,
i.e. is true.
So, These two functions are inverse of each other.
4) f(x)= -8x, 
Not true.
Therefore, Option 3 is correct.
Answer:
y=0.5x + 5
Step-by-step explanation:
The points are (0,5) and (-10,0)
to find the slope do
0-5/-10-0 = 5/10 = 1/2 = 0.5
next plug one of the points into point slope formula
y-y1=m(x-x1)
lets use the point (-10,0)
y1=0
x1= -10
m= 0.5
y-0=0.5(x- -10)
y = 0.5(x+10)
distribute the 0.5
y=0.5x+5
Answer:
C
Step-by-step explanation:
the area (A) of the hexagon can be calculated as
A = 
pa ( p is the perimeter and a the apothem )
p = 6 × 10 = 60 and a = 5
, then
A = × 60 × 5
= 30 × 5
= 150
≈ 259.8 cm² ( to the nearest tenth )
