I don't see any options, but once you factor x^2-5x+4, you get (x−1)(x−4)! So it's one or the other :)
15 over 20 equals 3 over 4
Answer: 26.01 pi
Step-by-step explanation: The formulae to find the area of a circle is pi times the radius squared. So 5.1 times 5.1=26.01. So the answer would be 26.01pi or (using 3.14 for pi) 81.6714
Usually when you add big numbers together, you get a result of exponents involved :) answer for your question : 1.212154551 e^22