Explain how you would use fraction bars to find the quotient of StartFraction 10 Over 12 EndFraction divided by StartFraction 4 Over 6 EndFraction. What is the quotient?

2nd one in the first row is correct

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

answer is 33

step-by-step explanation:

2 over 5 and 4 over 15

don’t know last one sorry

step-by-step explanation: