Two sides of an equilateral triangle measure (y+ 10) units and (y - 2) units. if the perimeter of the triangle is 21 units, what is the value of y

I believe the answer is 4.333333333

Step-by-step explanation:

his chances of getting a coin of higher value is 4/19

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