Answer:
4
Step-by-step explanation:
A+B+C=180, C=90. A+B=90. A=90-B. Cos(A) = sin(90-A)
Answer:
s=p*.2
Step-by-step explanation:
.2 is 20 percent in decimal form
The first one is arithmetic sequence as each term decreases by same amount
(1/3) as x = 1,2,3,4...