Simplify: (2x2 − 9x + 3) + (−7x2 + 4x − 2) (5 points) −5x2 − 13x + 1 −5x2 + 5x − 1 9x2 − 4x + 1 −5x2 − 5x + 1

The multiplication property of zero states that the product of any number and 0 is 0. what must be true about either a or b to make ab=0

Acoffee shop orders at most $3,500 worth of coffee and tea. the shop needs to make a profit of at least $1,900 on the order. the possible combinations of coffee and tea for this order are given by this system of inequalities, where c = pounds of coffee and t = pounds of tea: 6c + 13t ≤ 3,500 3.50c + 4t ≥ 1,900 which graph's shaded region represents the possible combinations of coffee and tea for this order?

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label?