Standard from is ax² + bx + c = 0
Just do the opposite of -12 on both sides
ANSWER: x² - 4x + 12 = 0
Answer:
Mr Chan spent
90\cdot 0.5 = 4590⋅0.5=45
dollars when he bought the shares. If he sells 45 shares at 3.80, he will gain
45\cdot 3.8 = 17145⋅3.8=171
dollars. So, the net profit would be
171-45 = 126171−45=126
Step-by-step explanation:
a) 2z+3z+4z=180
9z=180
z=20
So,three angles are 40,60 and 80
b) (y+30)+(2y+80)+(y+10)=180
y+30+2y+80+y+10=180
4y+120=180
4y=60
y=15
Three angles are 45,110,25
Answer:
(-6, 1) (-6, 3) (-5, 3) (-5, 2) (-3 2) -3, 1
Step-by-step explanation:
By rotating 90 degrees x become y and y becomes negative x