<span>the probability of an event and the probability of its complement add up to 1
because the total events are the even it self and its compliment, so its probability equal to 1 because these are all the possible events that will occur. for example a coin toss, an event head will happen 0.5, and its complement is tails which will also happens 0.5</span>
Go to that app that u can scan the bar code for the book and then it appears the answers
Answer:
Hence the expression
.
Step-by-step explanation:
Explanation
- The given expression is (3 r-8)(11 r+1).
- We have to multiply the given expression.
- Multiply the (3 r-8) by 1 , multiply the (3 r-8) by 11r then add like terms.

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-20, -3,7 are both below freezing and the other 3 are above freezing
Answer:
3.5 km between communities AC
Step-by-step explanation:
The idea is to find a common position for all the communities to locate the well
Kindly find attached a rough sketch of the problem for your reference.
Given that
AB=5km
AC=7km
From the diagram we can see that for all three communities to travel equal distance to the common well, the well has to be situated at 3.5km between communities AC.
Also, from the diagram the location of well is the intersection between the diagonals of the rectangular shape.