The little square means 90° and a straight line means 180° so 180 minus 68° minus 90° is 22° which leaves,
1) 112° and since you can flip 68° exacly the same on both sides it is a vertical angle which means
3)68.
4) 90°
Answer:

Step-by-step explanation:
subtract the functions as follows:
s(x) - r(x) = (2x+1) - (-x2 +3x)
expand the 2nd bracket by multiplying it by the negative 1 outside
= 2x + 1 + x2 - 3x
= x2 - x + 1
Voila!
Answer:
y + 3 = 5 (x + 4) or y = 5x + 17
Step-by-step explanation:
Answer:
i dont know the question what does it mean
Step-by-step explanation:
Answer:
There is no expression/equation
Step-by-step explanation: