Answer:
(-3, 1.5)
Step-by-step explanation:
(-0.5 - 5.5/2, 9.1 - 6.1/2) = (-3, 1.5)
I hope it will help you....
ax2 + bx + c = 0
x12 = (-b ± √D) / 2a , D = b2 - 4ac .
5x2 + 7x + 3 = 0
a = 5 , b = 7 , c = 3
D = 49 - 60 = - 11 , x1 = (-7 - i √11) / 10
x2 = (-7 + i √11) / 10
Answer::C. d < 2
2.45
