If 12V=3W, and v(not equal)=0, then which of the following is equivalent to 2W-8V?
A.0
B.4W
C.-6W
D.2V
E.-2V
please show work.
This makes absolutely no sense to me, certainly not as a math problem. It makes no sense to me as an electrical engineer, either.
I suppose we could do this ....
12V = 3W
V = 3W/12 = W/4
then 2W - 8V
= 2W - 8(W/4)
= 2W - 2W
= 0
To find an equivalent expression for 2W - 8V, we need to use the given information that 12V = 3W.
First, let's isolate W in the given equation. We can do this by dividing both sides of the equation by 3 to get:
12V ÷ 3 = 3W ÷ 3
4V = W
Now we substitute the value of W we found into the expression 2W - 8V:
2(4V) - 8V = 8V - 8V = 0
So, the correct answer is A. 0.
By substituting the given values and using algebraic properties, we eliminate the variables and arrive at the final answer of 0.