Answer: False
Reason: It should be x-a instead of x+a
Answer:
- The dimensions of a matrix are the number of rows × the number of columns of the matrix.
- For the example below, the the matrix is 3 × 4.
Explanation:
<em>The dimensions of a matrix</em> is the number of rows × the number of columns of the matrix.
Your matrix is garbled. Thus, to help you I will work with an hypothetical matrix.
Assume the matrix:
![\left[\begin{array}{cccc}1&0&0&0\\2&4&0&3\\0&0&0&9\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bcccc%7D1%260%260%260%5C%5C2%264%260%263%5C%5C0%260%260%269%5Cend%7Barray%7D%5Cright%5D)
That matrix has four colums and 3 rows.
For instance, the first colum is:
![\left[\begin{array}{c}1\\2\\0\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bc%7D1%5C%5C2%5C%5C0%5Cend%7Barray%7D%5Cright%5D)
Thus, it has 4 columns.
And the second row is:
![\left[\begin{array}{cccc}2&4&0&3\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bcccc%7D2%264%260%263%5Cend%7Barray%7D%5Cright%5D)
Thus, it has 3 rows.
Hence, the matrix is 3 × 4.
The first number is the number of rows and the second number is the number of columnns.
Ok so ° = negative
1.0x10°2
_______
8.9x10°6
would be solved like 1x(-10x10)= -100
8.9x(-10x10x10x10x10x10)=
8.9x-1000000=
8900000
and then you do the rest you do the rest
Answer is 42 because i add the 5 + 7 + 8 = 20 then 120/20 = 6 then cheese 5x6 = 30 , bologna 7x6= 42 , peanut butter 8x6= 48
Answer:
a) 150°
b) 30°
Step-by-step explanation:
It is easier to work the exterior angle first.
<h3>b)</h3>
The sum of exterior angles is 360°. The exterior angle at any vertex of a regular dodecagon will be 1/12 that:
360°/12 = 30° . . . the measure of one exterior angle
__
<h3>a)</h3>
The measure of an interior angle will be the supplement of the adjacent exterior angle.
180° -30° = 150° . . . the measure of one interior angle
