Step-by-step explanation:
Simply input 3 for x in the equation.

Answer:
the absolute value of 7 and -7 equals 7
a=7
a=-7
Answer:
its 10
Step-by-step explanation:
BECAUSE OF THE FACT THAT IT CHANGED THE WAY THE DIAMETER OF HOW IT FOLDED
Answer:
Below.
Step-by-step explanation:
is also 
It will differ for any x besides 1 and 0 because you're multiplying x by itself, which makes the answer greater.
But, it's the same for 1 and 0 because they equal each other when you square them.
Answer:
Follows are the solution to the given points:
Step-by-step explanation:
The value is attached in the image file please find it.
In point a:
First, we calculate the find the mean,
Formula:


To calculate the standard deviation, subtract the mean value from all observations then square its value:


please find attached file
In point b:
New 
Calculate new mean:


calculating the standard deviation:


please find attached file
In point C:
Calculate new mean:


calculating the standard deviation:


please find attached file
In point d:
for b,
New 
New
for c,
New
New 