Here is my friendly solution i'll skip the proof part for now. I am working on the others.
-2 degrees because 4 times -3 is -12 and 10-12 is -2
Answer:
C and D
Step-by-step explanation:
They are both right
Px + qy = r
2px - qy = 2r
----------------add
3px = 3r
x = 3r/3p
x = r/p
Answer:
The values of y would be -9 and 15
Step-by-step explanation:
we know that
the formula to calculate the distance between two points is equal to
we have

S(-2,3) and T(3,y)
substitute the given values in the formula and solve for y
squared both sides
take square root both sides




therefore
The values of y would be -9 and 15