The equation to this is A 5X+4Y=-20
ANSWER
EXPLANATION
The outermost square tile has side length,
The area of a square is given by;
We substitite the given expression for the side length into the formula to obtain,
We expand using the distributive property to obtain;
This gives us:
The last choice is correct.
A little Algebra, and we're home free!
We are given R = 20 and r2 = 75. We need to find r1.
The formula is 1/R = 1/r1 + 1/r2. Plug-in:
1/20 = 1/r1 + 1/75
1/20 - 1/75 = 1/r1
0.0366 = 1/r1
r1 = 1/0.03666
r1 = 27.272
Our answer is r1 = 27 ohms.
widest to narrowest: y=3/2x2, y= -1/2x2, y= 1/4x2
the answer is 60.
all you have to do is multiply all the numbers.
3 × 4 × 5 = 60
first:
multiply two of the numbers together. anything you like.
4 × 3 is 12
and now multiply the left number with the
result.
which is
5 × 12 = 60
