Simplify the complex fraction. x/x+2/1/x+1/x+2 a)x^2/2 b)x^2/x+2 c)x^2/2x+2 d)x^2+2x+2/2x+2

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).

Find the equation of the trend line (line of best fit). show your work i'm using the points (34,76) (42,91)

Lv beethoven software supplies customized software to a managed healthcare system. lv beethoven software's costs for the software is $1,723,000. lv beethoven software sells the software to the healthcare system for $3,816,981.10. overhead expenses are estimated at 47% of the selling price. what is lv beethoven software's net profit to the nearest dollar?