Answer: The answer is $254.15
Answer:
7 2 + 3 3
Step-by-step explanation:
the amount of time it takes for approximately 50% of a radioactive atom sample to undergo nuclear decay
x=7, y=10. (7, 10).
9x-5y=13
-4x+5y=22
-------------------
5x=35
x=35/5
x=7
9(7)-5y=13
63-5y=13
5y=63-13
5y=50
y=50/5
y=10
Two real number solutions
The question is asking "based on the graph, how many times does y=0?"
Then just count how many timesthe graph is on the x-axis.
the given sets are,
D= {4,7,9} , let E {4,6,7,8}, and let F={3,5,6,7,9}
now,
D U E = { 4 , 6, 7 , 8, 9}
and'
E intersection F = E n F = {6 , 7)
thus, the answer is
D U E = { 4 , 6, 7 , 8, 9} and
E n F = {6 , 7)
