Use the information below to sketch a graph of the polynomial
function y = f(x).
• f(x) is positive on the intervals (-2, -1) and (1, 2).
• F(x) is negative on the intervals (-- .-2), (-1, 1), and (2. ”).
• f(x) is increasing on the interval (-0, -1.5) and (o. 1,5).
• F(x) is decreasing on the intervals (-1.5.0) and (1.5. ~).

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

statement #3: proof- ang is congruent to ang ecd : angles are congruent.  

step-by-step explanation:

1: the missing angles in statement #3  

a.) acb  

reason- the reason why the answer is acb is because angle ecd and angle acb are both the same size *that's what the word congruent means this is really simple.  

2: the missing word in reason #3  

c.) vertical  

reason- the reason why the answer is vertical is because the angles in that diagram on figure 2 is slanted, which is vertical, and the e and a both lay on vertical lines. along with the other's, but e and a are the 2 main points you want to focus on. and c is kind of like your starting point, because c is for both angles, not just one.  

i hope that was and understanding.

step-by-step explanation:

answer: simile

step-by-step explanation: the difference between simile and metaphor is a simile describes with "as" and "like"