Examine the diagram of a tell above. Based on the description in this passage, which part of the organism performs a function similar to the part of the cell marked with the arrow?
A. Blood vessels
B. Skin
C. Bones
D. Brain

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice

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

it would open into a square depending on the type of envelope i’m not sure about the second part