Answer:
I don't really understand but did u try khan academy?
Answer:
d = -4
Step-by-step explanation:
3d – 4 + d = 8d – (-12)
3d - 4 + d = 8d + 12
4d - 4 = 8d + 12
(4d - 4d) - 4 = (8d - 4d) + 12
-4 = 4d + 12
-4 - 12 = 4d (+ 12 - 12)
-16 = 4d
-16/4 = 4d/4
d = -4
Answer:
Haven't done this in a minute but I think it's (2,1)
Answer:

Step-by-step explanation:
Subtract 13 from 17 to get the length of the base. Then add the 1, 1, and 3 together to get the height. Then you use the area formula for a triangle.
The slope is 3/2
To find the slope, you have to use the slope formula
y2-y1/x2-x1
6-3/4-2
3/2
So the slope is 3/2