It is found that there is a relationship between the weight of an airplane and the maximum speed it can travel. The results were published claiming that a lighter airplane can travel faster. What is the problem with reporting the result this way? correlation and causality

loaded question

voluntary response

missing data

b, i believe, but not sure.

jeff jeff

step-by-step explanation:

step-by-step explanation:

to determine whether a given function is even, we simply substitute x with -x in the expression. if the result after simplification is identical to the original equation, then the function is said to be even other wise odd.

f(-x) = (-x)^2 - (-x) + 8

      = x^2 + x +8

the resulting function is not identical to the original one;

f(-x) ≠ f(x)

therefore, f(x) is not an even function