84000 x 85000 = 84 x 1000 x 85 x 1000 = 84 x 85 x 1000 x 1000 which is equal to 84 x 85 x 1000000 = 7140 x 1000000 = 7140000000
There are 1000 metres in one kilometre. Therefore, 85 kilometres is equal to 1000 x 85 = 85000 metres.
88,000 lbs divided by 2,000 lbs (Short ton) = 44 Short Tons
Var[a(X^2)+b] = E[ ( a(X^2) + b - (aE[X^2] + b ) )^2 ] = E[ ( a(X^2) + b -aE[X^2] - b )^2 ] = E[ ( a(X^2) - aE[X^2] )^2] = E[ (a^2) ( (X^2) -E[X^2] )^2 ] = E[ ( (X^2) - E[X^2] ) ( (X^2) - E[X^2] ) ] = (a^2) E[ (X^4) -2(X^2)E[X^2] + ( E[X^2] )^2] = (a^2) { E[X^4] -2E[X^2]E[X^2] + ( E[X^2] )^2 } = (a^2) { E[X^4] -2( E[X^2] )^2 + ( E[X^2] )^2 } = (a^2) { E[X^4] - ( E[X^2] )^2 } = (a^2) Var[X^2] *however, we still do not know what Var[X^2] is....
anything raised to the power of x, f(x) = 2^x and f(x) = e^x are common examples. The exponential function, f(x)=e^x is the most important function in mathematics. One of the most important properties of the exponential function is: f ( X + Y ) = f (X) * f (Y) It is defined as Exp(X) = 1 + X + X^2/2! + X^3/3! + . . . exponential functions of other bases can be defined as follows: B^X = Exp (XlogB) where log is the inverse of Exp.
one-third of x is x/3
85000 x 3.5% = 2975
8.4 x 10 ^ 4
The number 85000 in scientific notation is 8.5 x 10^4.
It is 84000.
8.4 x 104 or 8.4 * 10^4
25 x 3,400 = 85,000
170 x 500 = 85000 170% x 500 = 850
2% of 85000 = 2% * 85000 = 0.02 * 85000 = 1700
28% of 85000= 28% * 85000= 0.28 * 85000= 23,800
84000
£84000 is $101,930
4200000