TIMED PLEASE HELP Use theta=45 to write 2x^2+ 2xy +5y^2 + 6x - 4y=40 in the x y -plane. Then identify the conic.

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

Lydia collected two sets of data one set of data shows an outlier. which set has an outlier, and which number is the outlier?

What is the value of the discriminant of the quadratic equation -2x = -8x + 8 and what does its value mean about thenumber of real number solutions the equation has?