B. Collinear
Collinear means that two or more points are on the same line.
See picture for explanation.
Well first things first
You just subtract 2008-1920 to see how much the year gap is between the increasing percentage of the value of the gem
2008-1920=88
Then we must multiply 120x88
120x88 gives us a value of $105,60
Hoped this helped
Question 1:
Sub the coordinates in for x and y
Y=-6x + b
1=-6(-4) +b
1= 24 +b
-23=b
Final answer: Y=-6x -23
Repeat for question 2
Question 3:
Slope = y2-y1/x2-x1
8-11/2- -4
-3/6= -0.5
Slope is -0.5
Sub x and y into equation
Y=-0.5x +b
11=-0.5(-4) +b
11=2+b
9=b
Y=-0.5x +9
Repeat for question 4
Answer:
a)x+69+73=180°{sum of angle of triangle}
b)
let, another a unknown side be 'p'
p=65°{alternate angle}
65+65+z=180°{sum of angle of triangle.}let ule
130+z=180
z=180-130
z=50°
- y+z+65°=180°{straight angle}
- y+115=180°
- y=180-115
- y=65°
z=x{alternate angle.}
x=50°
so, x=50°, y=65°, z=50°
c)z+19°=180°{straight angle}
z=180-19
z=161°
- z=y{co_interior angle}
- y=161°
d) 67+35+x=180°
x=180-102
x=78°
- y+67=180°{straight angle}
- y=180-67
- y=113°
- 35+z=180°{straight angle}
- z=180-35
- z=145°
2)
3x+10+2x-5+x-5=180°{sum of angle of triangle}
6x=180°
x=180/6
x=30°
hope it helps.