Answer:
The answer to your question is 
Step-by-step explanation:
f(x) = x² - 4
Process
1.- Change f(x) for y
y = x² - 4
2.- Change "x" for "y" and "y" for "x".
x = y² - 4
3.- Make "y" the object of the equation
y² = x + 4
4.- Change "y" for f(x)
Answer:
1 2/3 aka 1.6666666666666...
Step-by-step explanation:
When you divide 15 by 9 that is the number you get, and you can verify it by then multiplying 9 by 1 2/3 and you get 15. I don't know if they are wanting you so get x, but if they do then you would multiply 6 by the scale factor and you would get 10.
Basically, take the union of both domains
g(x)=x/(1-x)
1-x=0
1=x
x=1 is restricted because it makes you divide by 0
f(x)=(1-x)/(1+x)
1+x=0
x=-1
x=-1 is restricted because it makes you divide by 0
domain is all real numbers except -1 and 1
2, (double) 4, (double) 8 (double) 16, So 16 in week 4
2+4+8+16 = 30
6.4 - 2x - 6.63x = 610.5
subtract 6.4 from both sides
-2x -6.63x =604.1
collect like terms
-8.63x = 604.1
divide both sides by -8.63
x= -70
