Answer:
the first formula
Step-by-step explanation:
the graph is y=cosx and cosx=sin(x+90)
Answer: 504
Step-by-step explanation:
When we select r things from n things in a order , we use permutations.
Formula for permutation: 
Given : The number of family members who are potential kidney donors. = 9
Number of people needed to be selected for best match, a second-best match, and a third-best match ( in an order)=3
Then, the number of possible orders are = 

Hence, the number of possible orders 504.
Answer:
3.1 degrees celcius
Step-by-step explanation:
5.6C-2.5C=3.1C
Answer:
DAC = 54
Step-by-step explanation:
90 - 36 = 54
54 degrees
Answer:
B
Step-by-step explanation:
d+c=180 because 360 degrees are in the parrallegram so divide that by 2 so 114+c=180 so
c=66