A baseball coach bought 4 bats and 7 balls for $68. The next day the coach bought 1 bat and 1 ball for $14. The following system of equations can be used to determine how much each item cost.

191 students play sports and ninety-seven 10th graders were surveyed.

step-by-step explanation:

answer: 486in^2

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