We are asked to determine the numerator of the simplified sum and the answer is the letter "C" which is "4X + 6". To get the answer, the solution is shown below:
We have given equation as:
x / (x²+3x + 2) + 3/(x+1) , we need to factor out the denominator of the first term such as x²+3x+2 = (x+2) (x+1)
x / (x+3)(x+1) + 3/(x+1)
Perform combining of terms such as:
x + 3(x+2) x + 3x +6 4X + 6
------------------- = ----------------- = --------------
(x+2) (x+1) (x+2)(x+1) (x+2)(x+1)
Therefore, the numerator simplified sum is "4X + 6".
(a) The team captain wants to know what his teammates eats before a match
Team captain know by taking a survey of teammates
(b) The team captain wants to know who can score most goals against the best player
This can be known by observation of games. so its observational study
(c) The team captain wants to know how praising the affects the teammates performance.
This can be known by experiment
(d) The team captain wants to know what other sports teammates play
This can be known by observation of games. so its observational study
That system has D. no solutions