Here are the approximate populations of three countries, expressed in scientific notation: Panama: 4\times10^6; Peru: 3.2\times10^7; Thailand: 7\times10^7. Lin says that more than 20 times as many people live in Thailand than in Panama. Is this correct? If not what is the correct answer? Explain how you know.

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