How many positive integers are a factor of 8! but not a factor of 7! A) 8 (B) 16 (C) 20 (D) 24 (E) 36

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.

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

: )

just took the test and my answers down below!

step-by-step explanation:

check the pic :