Answer:
The answer is c: N + 13 = 20
Step-by-step explanation:
Answer:
{-3, 3}
Step-by-step explanation:
x^2 - 9 = 0 can be written in factored form as (x -3)(x + 3) = 0. Letting each factor equal zero separately and solving for x, we get x: {-3, 3}
Answer:
d ... or c
Step-by-step explanation:
Answer:
Even
Step-by-step explanation:
The concepts of odd and even apply only to integers .y = cos x is always going to be even, because sin(np) is an even function.