Answer:
![[B]=2](https://tex.z-dn.net/?f=%5BB%5D%3D2)
Step-by-step explanation:
![B=\left[\begin{array}{ccc}3x-5&-3+2y\\11-3x&2y-5\end{array}\right]](https://tex.z-dn.net/?f=B%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D3x-5%26-3%2B2y%5C%5C11-3x%262y-5%5Cend%7Barray%7D%5Cright%5D)
With 
and 
![B=\left[\begin{array}{ccc}3(3)-5&-3+2(4)\\11-3(3)&2(4)-5\end{array}\right]](https://tex.z-dn.net/?f=B%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D3%283%29-5%26-3%2B2%284%29%5C%5C11-3%283%29%262%284%29-5%5Cend%7Barray%7D%5Cright%5D)
![B=\left[\begin{array}{ccc}9-5&-3+8\\11-9&8-5\end{array}\right]](https://tex.z-dn.net/?f=B%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D9-5%26-3%2B8%5C%5C11-9%268-5%5Cend%7Barray%7D%5Cright%5D)
![B=\left[\begin{array}{ccc}4&5\\2&3\end{array}\right]](https://tex.z-dn.net/?f=B%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D4%265%5C%5C2%263%5Cend%7Barray%7D%5Cright%5D)
solving the determinant of matrix B
![[B]=\left[\begin{array}{ccc}4&5\\2&3\end{array}\right]=(4.3-5.2)=(12-10)=2](https://tex.z-dn.net/?f=%5BB%5D%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D4%265%5C%5C2%263%5Cend%7Barray%7D%5Cright%5D%3D%284.3-5.2%29%3D%2812-10%29%3D2)
<u>Answer:</u>
The correct answer option is D. 120°, 240°.
<u>Step-by-step explanation:</u>
We are given the information about x that 
.
We know that [tex]cos x=-\frac{1}{2}[/tex ] is actually the ratio of adjacent side to the hypotenuse. It means that here, adjacent is -1 and hypotenuse is 2.
A negative cosine tells us that the angle is either in Quadrant II or Quadrant III.
So if it is in 2nd quadrant, then x = 120° and if its in 3rd quadrant then x = 240°.
Answer:
400,000
Step-by-step explanation:
In total, you would be paying 400,000 for 2 years for the interest.
So, for one year, the interest would be 200,000. The monthly rate would be 16,666.6667.
Answer:
Step-by-step explanation:
you have to use trigonometric functions
cos 30 = adj. /hyp.
cos 30 = 12 / y
y = 12/cos 30 ≅13.86
tan 30 = opp./adj
tan30 = x / 12
x = 12 tan30 ≅6.93
Vertical lines: lines that run up and down. If you are standing up then you are vertical. On a graph the x-axis has little marks that run up and down or "vertical." Since the x-axis has lines that run vertical then if you have a point use you x-ordinate (x number). Therefore; in the point (4, -3), your vertical line is x = 4.
In the point (2, 10), can you determine the vertical line ...
Which is x=2
For vertical line just take the other number and write y =.
