2x^2-12x-16=0 solve by completing the square

Janet is mixing a 15% glucose solution with a 35% glucose solution. this mixture produces 35 liters of a 19% glucose solution. how many liters of the 15% solution is januet using in the mixture? a. 25 liters c. 28 liters b. 7 liters d. 10 liters

In the 30-60-90 triangle below side s has a length of and side r has a length

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.