Answer:
E; 8x9 is equal to 72 which estimated is 70
Answer: A. 0.09
Step-by-step explanation:
So if you subtract 45% from 80% and thats when you get 0.09
Answer:
Well, for (D), the answer would be 32.
Step-by-step explanation:
Because, 20 +12 =32. And 32 - 12 = 20. With the other ones that add, its the same way. You can just for example, if its -5 + b = -40, you can just go 5 - 40= which equals 35. Which should give you 40 if you add 35 and 5 together.
Answer:
Sample space is ![\{F,PF,PPF,PPP\}](https://tex.z-dn.net/?f=%5C%7BF%2CPF%2CPPF%2CPPP%5C%7D)
Step-by-step explanation:
Number of security doors = 3
Let P denote a successful pass and F denote a failed pass.
Sample space refers to a set of all possible outcomes.
If the first attempt to pass through a door is a failure, then the outcome is F.
If the second attempt to pass through a door is a failure, then the outcome is PF.
If the third attempt to pass through a door is a failure, then the outcome is PPF.
If the fourth attempt to pass through a door is a failure, then the outcome is PPP.
Sample space is ![\{F,PF,PPF,PPP\}](https://tex.z-dn.net/?f=%5C%7BF%2CPF%2CPPF%2CPPP%5C%7D)