Answer:
x=-2.5
Step-by-step explanation:
ok
sotake +9 to the other side
10x-6x=-1-9
4x=-10
divide both sides by 4x
x=-2.5
Answer would be C because the cost is independent
get the point of discontinuity we proceed as follows;
f(x)=x+5/x^2+3x-10
f(x)=4x+5x^2-10
this can be written is such a way that they have the same denominator, here we shall have:
f(x)=(4x^3-10x^2+5)/x^2
The denominator= x^2
The numerator=4x^3-10x^2+5
The discontinuity is at the point x=0
the removable discontinuity is the the point x=2
Answer:
B
Step-by-step explanation: