Write a quadratic equation in standard form that has two solutions, 6 and −7

The quadratic equation is

Step-by-step explanation:

∵ The solution of the quadratic equation are x = 6 and x = -7

∴ x - 6 = 0 and x + 7 = 0

∴ The factors of the equation are (x - 6) (x + 7)

∴ The equation is

answer: the first one

step-by-step explanation: use a calculator and divide the minutes by the dollars.

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