Answer:
10x^2-4x
Step-by-step explanation:
We will have to open the bracket first
So let's solve
2x(5x-2)
10x^2-4x
Since we are not asked to solve further so we will have to leave he final answer as 10x^2-4x
But in the case where a certain value is given to substitute for x we will have to solve further
Answer: false
Step-by-step explanation: Because there is no direct link between the models obtained from forward and backward selection, hence the option is False.
Set it up as a direct variation equation y/x=k where k is the constant of variation. We have values for y and x and have to find k. 18/5=k, so k=3.6. Now plug in the other given y value and use that k value to find x: y/11=3.6 or
y/11=18/5, whichever your book or teacher prefers.