Answer:
f^-1(x)=1/4x+2
Step-by-step explanation:
y=4x-8
change x and y
x=4y=8
switch sides
4y-8=x
add 8
4y=x+8
divide both sides by 4
y=1/4x+2
substitute f^-1(x) for y
f^-1(x)=1/4x+2
(1,800−(1,800×0.30))
=1,260
1,260×0.09
=113.4
113.4+1,260
=1,373.4 .....answer
1)
||x|-4|= |x-1|
1st step = separate the equation into 2 possible equations
2nd step = solve the equations
|x|-4= x-1
x= -3/2
Or
|x|-4= - (x-1)
X= 5/2
2)
Do the same
X= -5/2
X= 7/2
Answer:
k= -1
Step-by-step explanation:
the remainder is 32, f(3)=3(3)*2 + 2(3) + k = 32
f(3)=27 + 6 + k = 32
k=32-33
k= -1
The answer is 40, take 21 from the last equation solved and add 8 to it then add 11
