Someone please solve all five of these please you get 30 points and If you are correct I will make brainlienst please

15.The ratio is (√2)/2.

11 A. A=314.2in^2

6.

figure C

Perimeter

3 * (1/2) * (6π) + (1/2) * (18π) = 18π cm

Area

3 * (1/2) * ((3 ^ 2) π) + (1/2) * ((9) ^ 2π) = 54π cm ^ 2

Figure B

Perimeter

6 * (1/2) * (4π) + 2 * (4) = (12π + 8) cm

Area

3 * (4 * 4) = 48 cm ^ 2

11 B. 78.54 cm^2

Step-by-step explanation:

I cant insure they are all right

connie < felicia < stew

step-by-step explanation:

stew:

we need to find the slope

m = (y2-y1)/ (x2-x1)

    = (2650-795)/(10-3)

    = 1855/7

265 words per minute

connie:

we need to find the slope

m = (y2-y1)/ (x2-x1)

we have two points (0,0) and (4,800)

m = (800-0)/(4-0)

  m = 800/4

    200 words per minute

felicia:

260 words per minute

200< 260 < 265

connie < felicia < stew

can you put the picture up?

step-by-step explanation: