F(x) = x5−8x4+21x3-12x2-22x+20
Three roots of the polynomial function or -1 1 and 3 +i. Which of the following describes a number in nature of all the roots of this function

Mp model with mathematics explain how the number of text messages dario sent and the cost form an arithmetic sequence.then write an expression to find dario's text messaging bill if he sends n text messages over 250.

Rai compares two cable plans from different companies. which equation gives the correct value of mm, the number of months for which plans a and b cost the same?

Given the following sampling distribution of one mean with a sample size 49, from a normally distributed population,find the population standard deviation, o.79828588912497