Coach decaro records the cross country runners' times compared to their personal best times.

runner

gregor

hiroki

isabelle

juan

karen

3k times

time compared to

personal best

+5.6

-11.6

+3.2

0

-5.2

which list correctly orders the runners from most improved to least improved?

juan, hiroki, karen, isabelle, gregor

juan, isabelle, karen, gregor, hiroki

hiroki, karen, juan, isabelle, gregor

gregor, isabelle, juan, karen, hiroki

The 4th list: Gregor, Isabelle, Juan, Karen, Hiroki.

Step-by-step explanation:

Times compared to personal best when arranged from most imporoved to least improved are:

+5.6, +3.2, 0, -5.2, -11.6

Now +5.6 is Gregors, +3.2 is Isebelle's, 0 is Jaun's, -5.2 is Karen's, and -11.6 is Hiroki's. Therefore, the list that orders runners from most improved to least improved is

Gregor, Isabelle, Juan, Karen, Hiroki

details

step-by-step explanation:

9) i can't see the angle so whatever it is just do this: cos(angle) x hypotenuse and then use that answer and they hypotenuse and plug it into this: (answer you just got)^2 + b^2 = (hypotenuse)^2. the first answer will be the answer of the adjacent side and the second answer after this equation will be the opposite side.

10) y = 14 x = √147 or 12.12435565

11) x = 4.8

12) x = 4.2

13) x = 9.3

14) pq: 13.2

qr : 17.6

angle p: 53º

15) angle c: 54.3º

angle a: 35.7º

16) h = 21040

v = 1841

step-by-step explanation:

10) 7/sin(30) = 14 = y

7^2 + b^2 = 14^2

49 + b^2 = 196

b^2 = 196 - 49

√b^2 = √147

x = √147

11) cos(70) x 14 = 4.788282007

x = 4.8

12) tan(25) x 9 = 4.196768923

x = 4.2

13) sin(31) x 18 = 9.270685348

x = 9.3

14) pq: sin(37) x 22 = 13.23993051

pq: 13.2

qr: cos(37) x 22 = 17.56998122

qr : 17.6

angle p: 180 - (37 + 90) = 53º

15) cos-1(7/12) = 54.31466529

angle c: 54.3º

angle a: 180 - (90 + 54.31466529) = 35.68533471

angle a: 35.7º

16) 4 x 5280 = 21120

cos(5) x 21120

h = 21039.63202

h = 21040

sin(5) x 21120

v = 1840.729287

v = 1841