Which number sentence should be used to solve this problem? paul used 15.55 feet of rope to make a tree swing. he used 27.42 feet of rope to make a rope ladder. how much rope did paul use to make the tree swing and the rope ladder? a. 15.55 + 27.42 = ? b. 27.42 - 15.55 = ? c. 15.55 - 27.42 = ?

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