The second graph because 2x5=10, 4x5=20, 6x5=30!
14/20 = 0.7....multiply by 100 to get ur percent = 70%
so 14 is 70% of 20
Answer:
Step-by-step explanation:
a) 3x^2-12x-11=3*x^2-3*2*2*x+3*4-23=3*(x^2-2*2x+2^2)-23=3*(x-2)^2-23
so a= -2 ,b= -23
b) x1=[12+V(12^2-4*3* -11)]/6=12/6+V(144+132)/6=2+2/6V69=2+1/3V69=
2+V69/9=2+V23/3
c=2, d= 23/3
Answer:
40 degrees
Step-by-step explanation:
