Price, product, promotion, place , and people of your business
Answer:
Light does not need a medium to travel travel through, but since waves must have a medium to vibrate, sound is not created where no air is present.
Explanation:
Answer:
Explanation:
![A=\left[\begin{array}{ccc}3&-9&-3\\-1&2&0\\-2&3&-1\end{array}\right] \\\\R_2\rightarrow 3R_2+R_1,R_3\rightarrow 3R_3+2R_1\\\\=\left[\begin{array}{ccc}3&-9&-3\\0&-3&-3\\0&-9&-9\end{array}\right] \\\\R_3\rightarrow 3R_3-9R_2\\\\=\left[\begin{array}{ccc}3&-9&-3\\0&-3&-3\\0&0&0\end{array}\right]](https://tex.z-dn.net/?f=A%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D3%26-9%26-3%5C%5C-1%262%260%5C%5C-2%263%26-1%5Cend%7Barray%7D%5Cright%5D%20%5C%5C%5C%5CR_2%5Crightarrow%203R_2%2BR_1%2CR_3%5Crightarrow%203R_3%2B2R_1%5C%5C%5C%5C%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D3%26-9%26-3%5C%5C0%26-3%26-3%5C%5C0%26-9%26-9%5Cend%7Barray%7D%5Cright%5D%20%5C%5C%5C%5CR_3%5Crightarrow%203R_3-9R_2%5C%5C%5C%5C%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D3%26-9%26-3%5C%5C0%26-3%26-3%5C%5C0%260%260%5Cend%7Barray%7D%5Cright%5D)
This is the row echelon form of A. This means that only two of the vectors in our set are linearly independent. In other words, the first two vectors alone will span the same subspace of 
as all three vectors.
Therefore, the linearly independent spanning set for the subspace is
![\left[\begin{array}{ccc}3\\-1\\-2\end{array}\right] \left[\begin{array}{ccc}-9\\2\\3\end{array}\right] \left[\begin{array}{ccc}3\\0\\-1\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D3%5C%5C-1%5C%5C-2%5Cend%7Barray%7D%5Cright%5D%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-9%5C%5C2%5C%5C3%5Cend%7Barray%7D%5Cright%5D%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D3%5C%5C0%5C%5C-1%5Cend%7Barray%7D%5Cright%5D)
If your mass is 140kg , then your mass is <em>140kg</em>.
It doesn't make a bit of difference what time it is, whether you're happy or sad, sleeping or lifting weights or running, whether it's raining or shining, hot or cold, climbing a mountain or falling out of an airplane, on the surface of a planet, asteroid, comet or star, or floating or falling through empty lonely outer space. Your mass is your mass. The only way it can change is if YOU make changes in yourSELF, like eating a big steak, sweating through a long tough workout, or skipping dinner, or growing to maturity.
(I guess you're already pretty mature. If your mass is 140kg, then you weigh about 308 pounds when you're on Earth.)
Control is the comparison like 0 or the normal say you are testing salt on plants, no salt would be the comparison
Constant are what stay the same, like the things other then IV and DV
