Replace n with 13 and simplify
an = 84+(n-1)*(-6)
a13 = 84+(13-1)*(-6)
a13 = 84+(12)*(-6)
a13 = 84+(-72)
a13 = 84-72
a13 = 12
Answer: Choice A) 12
Answer:
cosine = adjacent/hypotenuse
cos A = 20/29 (choice: yellow)
Step-by-step explanation:
Answer: 171
Step-by-step explanation:
D to balance the numbers out to zero both are positive so the answer is d