The number of stay-at-home fathers in Canada went from 20,610 in 1976 to 53,555 in 2010. The growth seems fairly linear. Predict the number of stay-at-home fathers in Canada for 2020

One expression below in undefined, and the other expression has a well defined value. which expression is undefined and explain why it has no value. which expression is defined? what is the value of that expression and how do you know? what is a different expression using a trig inverse function that is also undefined?

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).

Whit h equation best represents this situation the number 98 increased by an unknown number equal to 120