F(x)=8/x, g(x)=8/x
f(g(x)) = f(8/x)=8/<span>8/x=x,
</span>g(f(x)) =g(8/x) =8/<span>8/x=x,
so </span>f(g(x)) = g(f(x)) = x. if <span>f of x equals eight divided by x and g of x equals eight divided by x
</span>
Required number
= 1500*(1+2%)^4
=1624(cor.to.the nearest integer)
Answer:
1) x = 6, y = -2 + 1/3x
2)
Step-by-step explanation:
1) x-3y=6
-3y=6-x, 6-x/-3y
y = -2 + 1/3x
x - 3(-2+1/3x) = 6
x - 6 + x = 6
2x =12
x = 6
2) x=3y+4
-3y = -x+4
y = -x/-3 +4/-3
y = 1/3x + -4/3
x = 3(1/3x + -4/3)
I am unsure about x on number two...
30 dollars = your food bill at the restaurant
Now, you leave 20% for tip..
20% = .20
Then the sales tax charged for your bill is 6%
6% = .06
How much will you be paying in total?
=> 30 dollars * .06 = 1.8 - is the sales tax that will be added to your bill
=> 30 dollars + 1.8 dollars = 31.8 dollars.
then let's calculate the tip which is 20%
=> 31.8 * 0.20 = 6.36
31.8 + 6.36 = 38.16 dollars or approximately 83 dollars
The answer is
f−1(x)=−x/4−2
