Answer:
Answer is 12
Step-by-step explanation:
f(g(-2))
=f((-2)^2+2)
=f(6)
=-1/2×6^2+5×6
=12
2(z-10)=-4
2z-20=-4
2z=16
z=8
Answer:
$0.30
Step-by-step explanation:
3.68*.0825= .3036
Answer:
533.3%
Step-by-step explanation:
simplify the fraction to 16/3 (3x5+1=16) then you multiply the fraction by 100
which is 533.3 or 533 1/3 %
You have f(x)=(<span>6x+9)/(x-5) and want to find the inverse function? Please note that the parentheses are obligatory here.
1. Replace "f(x)" with y: y = </span>(6x+9)/(x-5)
<span>
2. Interchange the variables x and y: x</span> = (6y+9)/(y-5)
3. Solve this result for y: x(y-5) = (6y+9), or xy-5x = 6y+9. Then:
xy-6y = 9 + 5x, or y(x-6) = 9+5x
9+5x
Then y = --------------
x-6
Here x may not = 6, because division by zero would occur otherwise.
