I'll do ya one better - 12 plus 8 equals what?
3x+12 = 18 3x = 18-12 3x = 6 x = 2
If: 6x = 12 Then: x = 2
y = cx when x = 8, y = 12 so that 12 = 8c which gives c = 12/8 = 1.5
72.
(12)2x = 28(2x) log(12) = log(28)2x = log(28) / log(12) = 1.34098 (rounded)x = 0.67049 (rounded)
logx=12 x=10^12 x=1,000,000,000,000
5x 12x = 17xx log(5) + x log(12) = x log(17)x [ log(5) + log(12) ] = x log(17)x log(60) = x log(17)x = 0This actually checks. Since anything to the zero power is ' 1 ',50 120 = 1 times 1, or 1and 170 = 1
x7 = 12 if it was x2 we would square root each side. with x7 we need to fing the seventh root. using a calculator type seven then press the button like a square root but with a small x before it the press 12 to find x Alternative method: Take log 12, divide by 7 then take antilog.
- log(2.3 X 10 -12 ) = 11.6 pH -----------------very little H + concentration in this solution.
2.3 X 10 -12 ? ( signs are not showing up on this site lately ) - log(2.3 X 10 -12 ) = 11.6 pH =============not much H +
The Yule Log.
30
If it is compounded annually, then: F = P*(1 + i)^t {F is final value, P is present value, and i is interest rate, t is time}.So if it triples, F/P = 3, and 12 years: t = 12, so we have 3 = (1 + i)^12, solve for i using logarithms (any base log will do, but I'll use base 10):log(3) = log((1+i)^12) = 12*log(1+i)(log(3))/12 = log(1+i).Now take 10 raised to both sides: 10^((log(3))/12) = 10^log(1+i) = 1 + ii = 10^((log(3))/12) - 1 = 0.095873So a rate of 9.5873 % (compounded annually) will triple the investment in 12 years.
48 divided by 12 equals 4. 48/12 = 4
Eden Log was created on 2007-12-26.
Well, if 3x equals 12, then x equals 4. And if y equals 3x, then y equals 3 times 4, which is 12. So, y equals 12. Math can be a piece of cake when you break it down like that!