So confused please help this is a 30 60 90 triangle

x = 10, y = 20

Step-by-step explanation:

The ratio of the sides of a 30-60-90 triangle is a:a:2a. The side given is the one that is the a. This means that you can do divided by to get that a = 10. That means that side x is 10. For side y, it is 2a, or 2 * 10 = 20.

how is that middle school

step-by-step explanation:

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