Listed below are the times for the girls’ 400 meter relay team.
Polly 12.37 seconds Wendy 12.75 Tamika 13.35
Danielle 12.56
If the school record is 49.9 seconds the team must run how many seconds faster to tie the school record?

1.13

Step-by-step explanation:

add them all together. 51.03

51.03-49.9=1.13

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