Why sqare root of 42 is not rational number

Planning for the possibility that your home might get struck by lighting and catch on fire is part of a plan

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a. the profit when the unit price is equal to 0b. the unit price(s) when the profit is equal to 0c. the profit when the unit price is greatestd. the unit price(s) when profit is greatest

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12