Find the value of all six trigonometric ratios for 0=5π/4​

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

What is the solution set of the quadratic inequality x^2-5< or equal to 0

How is this equation completed? i cannot find any examples in the book.