Answer:
g(f(x)) = x
Yes, the functions are inverses.
Step-by-step explanation:
Hi there!
We're given:
To solve for g(f(x)), plug f(x) into g(x) as x:
Because g(f(x)) = x, the two functions are inverses.
I hope this helps!
It takes 230 minutes for 4 people to paint 6 walls.
Hope this will help you!
3⁴= 3×3×3×3= 81
3⁵= 3×3×3×3×3= 243
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Answer:
110
Step-by-step explanation:
2x+13+3x+57=180
5x+70=180
180-70=110
Let x denote the number of pages holding 2 cards and y
denote the number of pages holding 3 cards.
So his entire number of card would be represented by 2x + 3y, which is given as
18.
2x + 3y = 18
Subtract 3y from the two sides:
2x = 18 – 3y
then divide both sides by 2:
x = (18 – 3y)/2
We know that x must be an integer. So 18 – 3y must be a multiple of 2. Since 18
is a multiple of 2, 3y is also a multiple of 2. Then y must be a multiple of 2
too.
Let's start with y = 0.
When y = 0, x = (18 – 3(0))/2 = 9.
When y = 2, x = (18 – 3(2))/2 = 6.
When y = 4, x = (18 – 3(4))/2 = 3.
When y = 6, x = (18 – 3(6))/2 = 0.
Thus there are 4 ways to display his figures.
