Juan is decorating a bulletin board in his classroom. He wants to put a piece of ribbon along the outer edge of the entire board.
If the bulletin board looks like the picture below, how many
inches of ribbon will he need to do the job?
32 inches
48 inches
80 inches
B
А
60 inches
C 160 inches
D
208 inches

1. 8

2. 9

3. 20

4. 3

5. 17

6. 2.2

7. 11.25

8. 1

9. 14

10. 2

step-by-step explanation:

thats the first half

chase is right because he already been to the swings and he know how far it will be to get there

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