What is the concentration of acid in a mixture of 10 cups of 50% acid and 14 cups of 20% acid?

,k  obviously

Step-by-step explanation:

;gbvweosuhfushgsdg[esytgw7e0t89dtgu23-9r`9`jn[grnjlnlnonoB~OUBYIVICU~UY~VY~opjerhjjih'rt;bm'fs.calemfibrd

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204

a)(x-2)^2+(y-1)^2=9

step-by-step explanation:

(picture explains)