The correct answer are A. and B.
Good luck!!!
Answer:
2.2 m/s
Step-by-step explanation:
Step one
Given data
An earthquake wave travels through 55 km
hence distance = 55 km
time taken = 25 seconds
<u>Required</u>
<u>the expression relating t and d</u>
Step two:
we know that velocity is
Speed= distance/time
speed= 55/25
Speed= 2.2 m/s
13.23 is the answer for that equation
X=10
12x-1=12+10x+7
2x=20
X=10
Answer:
-9
Step-by-step explanation:
(-4-2*-1/2)3
(-4+1)3
-3*3
-9
