Best Answer

It doesn't make much sense to calculate logarithms with pencil and paper - the calculations are too involved. Just multiply the two numbers, and calculate the logarithm on a scientific calculator. If you don't have one, use the Windows calculator (it has a mode for scientific calculator).

Q: Log xy where x equals 12 and y equals 20?

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6

The coordinates are: (-4, -6) and (12, 2)

That is the same as log xy.

mid point of xy

18

Related questions

6

The coordinates are: (-4, -6) and (12, 2)

That is the same as log xy.

xy = x ÷x y = 1

xy + y = z xy = z - y (xy)/y = (z - y)/y x = (z - y)/y

mid point of xy

That is the commutative property of equality.

18

Given: 2X + 2Y = 42X + Y = 42/2X + Y = 211 + 20 =212 + 19 =213 + 18 =214 + 17 =215 + 16 =216 + 15 =217 + 14 =218 + 13 =219 + 12 =2110 + 11 =21Given: XY = 1048 x 13 = 104X=8, 13Y=13, 8

Using: x - 2y = 8 y = (x - 8)/2 Substituting in: xy = 24 => x(x - 8)/2 = 24 => x2 - 8x = 48 => x2 - 8x - 48 = 0 => (x - 12)(x + 4) = 0 => x = 12 or -4 => y = 2 or -6 respectively (since xy = 24) ie the points (12, 2) and (-4, -6)

x+xy=8 xy=-x+8 y=-1+8/x

"xy" refers to the product of "x" and "y". Just substitute the variables for numbers, and do the multiplication.