Answer:
see below
Step-by-step explanation:
Scientific notation is a * 10 ^b
a must be a number between 1 ( including 1 ) and less than 10
12 is greater than 10 so it is not scientific notation
1/2 of 8 is 4 and 1/3 of 12 is 4 :)) have a nice day
Answer:
3x-y=2
Step-by-step explanation:
y=3x-2 minus 3x
-3x+y=-2 divide by -1
3x-y=2 answer
Answer with Step-by-step explanation:
We are given that
ABCE is a rectangle .Rectangle is that quadrilateral in which opposite sides are equal and each is equal to 90 degrees.
D is the midpoint of E.
We have to prove that 
Statement:1 ABCE is a rectangle.D is the mid point of CE
Reason: Given
Statement 2:
Reason:By definition of rectangle
Statement:3 AE=BC
Reason: By definition of rectangle
Statement 4:
Reason: By definition of midpoint because D is the midpoint of side EC
Statement 5:
Reason:SAS postulate
Statement: 6 
Reason:CPCT
Hence proved.
Answer:
The solution is x=4.
BRAINLIEST :)
It is not an extraneous solution.