Charlie mixes 15 liters of 17% acid solution with a 29% acid solution, which results in 23% acid solution.
let x represent the number of liters of 29% solution used and let y represent the number of liters of mixture. which system of equations can be used to find the number of liters of 29% acid solution in the mixture

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?