A survey of randomly selected eighth grade students explored the relationship between gender and participation in a school basketball league. Play in League

Do Not Play in League

Total

Boys

31

19

50

Girls

21

29

50

Total

52

48

100

What percentage of girls surveyed played in the basketball league?

A.
58%

B.
21%

C.
42%

D.
29%

step-by-step explanation: yes

the answer would be 150 books

step-by-step explanation:

if you divide 300 by 2 you will get 150

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15