Divide RS.13010 into two parts so that the amount of first part for 2 years is same as the amount of second part for 4 years at the rate 4% p. a. compound annually.

Determine the mean and variance of the random variable with the following probability mass function. f(x)=( 729divided by 91) (1 divided by 9) superscript x baseline comma x equals 1,2,3 round your answers to three decimal places (e.g. 98.765).

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expression 4s+9s represents the total number of items that will be displayed on s shelves. simplify the expression

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle