Answer:
(D) xy/(x + y)
Step-by-step explanation:
To find r in terms of x and y
Given,
- two resistors with resistances x and y are connected in parallel
- r is the combined resistance of these two resistors
- the reciprocal of r is equal to the sum of the reciprocals of x and y
Then,
1/r = 1/x + 1/y
1/r = (y + x)/xy
Find the reciprocal of both sides
r = xy/(x + y)
The right answer is option (D) xy/(x + y)
Answer:
False. 2/3 is positive so therefore, it would be increasing, not decreasing.
Step-by-step explanation:
Answer:
x=6
Step-by-step explanation:
I currently don’t have any paper on me to graph it for you, but I am able to give you coordinates.
Explanation:
When given an equation in the form y=Mx+b, we can immediately get the x-intercept and y-intercept.
To get the x intercept:
Make y=0
0=-3x-6
-2=x
So your coordinates are (-2;0)
To get the y intercept:
It is the b value
y=-6
So your coordinates are (0;-6)
Plot those on your graph and draw a line through them, write the equation next to the line and put an arrow on either end of the line.
Hope this helps! Feel free to comment for any questions you may have.