The populations of Siberian tigers and narwhals since 1990 are represented by the following tables

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

: )

answer: its the third option.

step-by-step explanation:

i just took the test.

you just switch the numbers basically so it would be 3/17