Hi,
Domain of (fog)(x) is R \ {13} =(-oo 13[ U ]13 +oo)
4x-8=9x+2
4x=9x+10
-5x=10
5x=-10
x=-2
Answer:
5m-7
Step-by-step explanation:
you only combine the common numbers
Answer:
y = 3z - 2x
Step-by-step explanation:
Systems of equations can be solved by a number of know techniques, such as substitution, elimination or graphical approach.
We are required to solve the system of equations given via substitution;
2x + y = 3z
x + y = 6z
The question requires us to determine the value for y from the first equation, that could be substituted into the second equation.
We simply need to make y the subject of the formula from the first equation;
2x + y = 3z
To do this we subtract 2x on both sides of the equation;
2x + y -2x = 3z - 2x
y = 3z - 2x
This is the value of y from the first equation, that can be substituted into the second equation.
Answer:
D) (x-2)
Step-by-step explanation:
Let's try each factor out with synthetic division:
Option D: x^5-2x^4+3x^3-6x^2-4x+8 / x-2 = 2 | 1 -2 3 -6 -4 8 = x^4+3x^2-4 with no remainder so D works
Option C: x^5-2x^4+3x^3-6x^2-4x+8 / x-9 = 9 | 1 -2 3 -6 -4 8 = x^4+7x^3+66x^2+588x+5288 with a remainder of 47600 so C can't work
Option B: Doesn't work
Option A: Doesn't work
Therefore, D is the right answer because there's no remainder.
Hope this made sense, I tried.
