Answer:
x2−8x 7
Step-by-step explanation:
21.2 or 15 sqrt of 2 (PETHAGOREOM theorem)
a^2+b^2=c^2
20^2+5^2=C^2
400+25=C^2
450=C^2
sqrt 450=
15 sqrt of 2 or 21.2
^.^
- Amanda
ima take my dagn points back smh dont answer on my questions if ur not gonna do them and say thanks ma'am like wt dude such a lame move god
1000
Since the Richter Scale is based off of an exponential equation, every point on the scale adds a magnitude of 10.