Answer:
It is necessary to do the same thing to both sides of th equation to perform valid operations because your equation would change otherwise. If you do not do the same action on both sides, your equation will not stay the same as it started. One side could get too large or too small in amount for the other side.
Step-by-step explanation:
Take 2x + 7 = 6 for example. First, you would subtract 7 from both sides. Your new equation is 2x = -1. Then, divide two from both sides. The new equation is .
If you hadn't subtracted 7 from both sides, the equation wouldn't have stayed the same, and you wouldn't have gotten the correct answer. Your equation would have changed to 2x = 6. Your answer would be x = 3. These two equations are not the same.
This shows that it is necessary to do the same thing to both sides of the equation.
Hope it helps. Good Luck!
Answer:
Step-by-step explanation:
In physics the linear momentum p of an object is defined as the product of its mass by its velocity.
Where m is mass and v is velocity
In this case the professional fullback has a mass and a speed
Then the momentum is:
Answer:
-
Step-by-step explanation:
To convert degrees to radians
radian measure = degree measure × , then
radian measure = - 220 × ( divide 220 and 180 by 20 )
= -
Answer with Step-by-step explanation:
We are given that A,B,C,D,E and F.
We have to find the number of different four -letter arrangements can be formed using given six letters a,if the first letter must be C and one of the other letters must be B and no letter can be used more than once in the arrangement.
Number of letters=6
We have to arrange four letter out of six
After fixing C and B then we choose only two letters out of remaining four letters and repetition is not allowed.
Permutation formula :
We have n=4 an r=2
Using this formula and substitute the values
Then, we get
Hence, number of different four -letter arrangements can be formed using six letters when repetition is not allowed=12