Answer:
Answer C:
Cannot be true because
is greater than zero in quadrant 2.
Step-by-step explanation:
When the csc of an angle is negative, since the cosecant function is defined as:

that means that the sin of the angle must be negative, and such cannot happen in the second quadrant. The sine function is positive in the first and second quadrant.
Therefore, the correct answer is:
Cannot be true because
is greater than zero in quadrant 2.
Answer:
the first option is correct
since value of a will be found through division.
It's C, just look at where the points are.
add them together then divide by 5
81 +86 +81 +76 +71 = 395
395/5 = 79
your average was 79