Avolleyball reaches its maximum height of 13 feet, 3 seconds after its served. which of the following quadratics could model the height of the vollyball over time after it is served. select all that apply. a: f(x)=2x^2+12x+5 b: f(x)=-2x^2+12x-5 c: f(x)=-2x^2-12x+5 d: f(x)=-2(x-3)^2+13 e: f(x)=-2(x+3)^2+13

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

Ageologist had two rocks on a scale that weighed 4.6 kilograms together.rock a was 0.5 of the total weight.how much did rock a weigh?

Darian wants to build a regulation size pool table that is 9 feet in length.he plans he ordered are 18 by 36 inches. what is the scale factor of the dilation he must use to build a regulation pool table