You know if something is a function or not because the X will never be used twice in a set. If it is, then it's not a function.
A. Uses -1 twice
B. Uses Nothing twice (good)
C. Uses 0 twice
D. Uses 0 twice
B is your answer
Answer:
a
Step-by-step explanation:
-5/9 ÷ 5/7
= -5/9 × 7/5
= -7/9
The answer should be a
3,059 I don’t really care
Answer:
65.4°
Step-by-step explanation:
According to question
The equation is
Cos(x)=5/12
x=acos(5/12)
x=65.4°
There are 120 choices.
5 × 4 × 3 × 2×1 = 120 choices
