Answer:
Y=9
Step-by-step explanation:
8y/8
72/8
=9
Answer:32
Step-by-step explanation:
(20)-(-12)=20+12=32
M=log I / S
if M=6, 6=logI/S and then 10^6=I/S, so we get I=S <span>x 10^6, we assume that
</span>A=S x 10^6
if M=8, so, 8=logI/S and then 10^8=I/S, so we get I= S x 10^8=A=S x 10^6x10^2
since A=S x 10^6, so I= <span>A x10^2, </span><span>an earthquake with a magnitude of 8 is 10² stronger than an earthquake with a magnitude of 6.</span>
Answer:
x=-15/2, y=1/8. (-15/2, 1/8).
Step-by-step explanation:
3x+4y=-22
x-4y=-8
------------------
4x=-30
x=-30/4
simplify
x=-15/2
-15/2-4y=-8
4y=-15/2-(-8)
4y=-15/2+8
4y=-15/2+16/2
4y=1/2
y=(1/2)/4
y=(1/2)(1/4)
y=1/8
