Step-by-step explanation:
60+5x+5=180 (being angle of straight line)
5x+65=180
5x=180-65
5x=115
x=23
Answer:
18 and 54
Answer: x1=-2
x2=2
5x²+4x-19=4x+1
5x²+4x-19-4x-1=0
5x²-20=0
5x²=20
x²=20/5
x²=4
x1=-√4=-2
x2=+√4=2
Answer:7
Domain: (-∞, ∞)
Range: (-∞,1]
