Which of the following could be the side lengths of similar triangles?

Question 5 options:

1, 2, 3 and 4, 5, 6

2, 3, 8 and 4, 6, 16

1, 1, 7 and 2, 3, 14

5, 10, 20 and 5, 10, 15

1rst option

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

step-by-step explanation:

is their an equation anywhere i can take a   look at it and see if i am right.