The solutions to the given quadratic equation can be determined using quadratic formula.

b =coefficient of x term = -1
a = coefficient of squared term = 4
c = constant term = 9
Using the values in the above formula we get:
So, option D gives the correct answers
Answer: 68
Step-by-step explanation:
Answer:
52! ≈ 8.0658 x 10^67
Step-by-step explanation:
52 card options for the first card
51 card options for the second
50 card options for the third
...
2 options for the 51st card
1 option for the 52nd card
52!
The earth is about 4 billion years old. It would require 126,230,400,000,000,000 copies of earth dealing one deck per second for 4 billion years to deal the whole set.