If you annual income form a Part time job is $2,698 and the inflation rate is
Answer:
-0.4
Step-by-step explanation:
Point A
(
x
A
,
y
A
)
= (-1, 1)
Point B
(
x
B
,
y
B
)
= (4, -1)
Objective :
Find the slope of a line that passes through points A and B.
Formula :
Slope
m
=
y
B
−
y
A
x
B
−
x
A
Solution:
Slope
m
=
−
1
−
1
4
−
−
1
=
−
2
5
m = -0.4
Answer:
2
Step-by-step explanation:
y1-y2/x1-x2
Since AED forms a straight line, all involved angles sum to 180°. Therefore AEB + BED = 180. Also, since EC bisects BED, BEC = CED, and BED = 2× CED. Now to substitute the first equation:
AEB + BED = 180
AEB + 2×CED = 180
11x-12 + 2(4x+1) = 180
11x-12+8x+2 = 180
19x-10 = 180
19x-10+10 = 180+10
19x = 190
x = 10
So what is m<AEC?? It is the sum of AEB + BEC, and since BEC = CED we can say that:
AEC = AEB + CED
AEC = 11x-12 + 4x+1 = 15x-11 = 15(10)-11 = 150-11
m<AEC = 139°
