Factor this polynomial using the gcf: 3xy^2 + 3xy^2 - 3xy 3xy(y + x - 1) -3xy(y + x + 1) 3x(y2 + x - 1) 3x^2(y2 + 1 - 1)

Add 1/7 + -1/7 your answer should be reduced to its smallest form and should not be an improper fraction

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

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