Answer:
x=8,10if this helps then your welcome if not I apologize
Answer:
Amount of fresh water = 3.5 * 10^7 cubic kilometers
Step-by-step explanation:
Given the following
Total water on earth = 1.4×10^9 cubic kilometers
If 2.5% of it is fresh water
Amount of fresh water = 2.5% of 1.4×10^9
Amount of fresh water = 0.025 * 1.4×10^9
Amount of fresh water = 0.035 * 10^9
Amount of fresh water = 3.5 * 10^7 cubic kilometers
Answer:
Step-by-step explanation:
Given
![A = \left[\begin{array}{cc}-2&6\\3&5\end{array}\right]](https://tex.z-dn.net/?f=A%20%3D%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D-2%266%5C%5C3%265%5Cend%7Barray%7D%5Cright%5D)
Required
Determine the determinant
For a two by two matrix, A such that:
![A = \left[\begin{array}{cc}a&b\\c&d\end{array}\right]](https://tex.z-dn.net/?f=A%20%3D%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7Da%26b%5C%5Cc%26d%5Cend%7Barray%7D%5Cright%5D)
The determinant |A| is:
So, in
The determinant is:
