What is the discriminant D of the equation?

n2+2n-2=0

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D =

Gabe Amodeo, a nuclear physicist, needs 30 liters of a 60% acid solution. he currently has a 40% solution and a 70% solution. how many liters of each does he need to make the needed 30 liters of 60% acid solution?

What is 19 1/7 - 5 1/3

A seller buys an item from a manufacturer for 9,500. He increases the cost by 5%. What is the markup value?

What is the value of x? A) 10 B) 12 C) 15 D) 17

Bill is 27 years older than Ted, who is 38 years younger than Amy. In how many years will Bill be the same age as Amy is now?

You have 5 cups of birdseed. You use 3/5, cup of birdseed each day. How many days will your birdseed last?

X, - 7,-6,-5,-4 y, 21,17,13,9

BookWorms increased its prices by 5%, and then increased by 3%. Books Galore increased its prices by 3%, and the increased them by 5%. Which shop's prices increased by the greater percentage? a. BookWorms b. Books Galore c. Both the same d.

Which graph is a sloution set to the open sentence? 12 < 3b or 2b + 14 < 4

Debra earns $7.50 an hour, plus tips, as a waitress. Suppose she works 24 hours in one week. How much money must she receive in tips to earm more than $250 that week?.