I wish I could explain how to do these, but I can recommend Math-way. You can type the equations in and it with simplify it for you. It will even show you the steps, but you have to pay fro that part, but at least it will give you the answer.
Hello damerahli!
Find the landmark.
Let's take a look at the graph. The coordinates given are (2, ¼).
This means that...
- Coordinate at abscissa = 2
- Coordinate at ordinate = ¼
In the graph given, each square = ¼ units. That means the 1st box above the origin in the ordinate is (0, ¼). Let's mark this as our coordinate of y-axis. Then let's take 2 in the abscissa (2, 0) as the other coordinate. So, by connecting the 2 points (since both the coordinates are positive they'll lie in the 1st quadrant) we can see that the landmark is the . (Marked as a yellow dot in the attached figure).
<em>Please </em><em>refer </em><em>to </em><em>the attached</em><em> picture</em><em> for</em><em> better</em><em> understanding</em><em>.</em>
__________________
Hope it'll help you!
ℓu¢αzz ッ
Answer:
B and C
Explanation:
Coordinates of A: (5,-5), which is in the 4th quadrant.
Coordinates of B: (-12,9), which is in the 2nd quadrant.
Coordinates of C: (-3,2), which is in the 2nd quadrant.
Coordinates of D: (2,-7), which is in the 4th quadrant.
We know that vertically opposite angles are equal
Therefore, 6x-7 = 4x +23
6x -4x = 23 + 7
2x = 30
X = 30/2 = 15
Angle ABC = 6 (15) -7 =90-7 =81