Which association best describes the data in the table?
variable x 12 18 16 8 9 5 10 14 11
variable y 63 100 88 30 36 17 47 72 52
a.
negative linear association
b.
negative nonlinear association
c.
positive linear association
d.
positive nonlinear association

65 8 7 4 5 6 8 4 3 2 1 9 5 6 4 2 1 6 5 1 5 1 3 2 3 5 multiply the third number in the first row by the seventh number in the third row. add this result to the fifth number in the second row. add to this total ten times the fourth number in the third row. subtract the eighth number in the first row from the result.

What is the area of the triangle 10 13 12

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)