I found this to help u if not here's the link: https://math.wonderhowto.com/how-to/prove-triangle-inscribed-circle-is-right-angled-340340/
it has a video to show u how to do it
it has a video to show u how to do it
Somebody please help.
1 answer:
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Answer:
3
Step-by-step explanation:
plus root 10 and minus root 10 gets cancel . So,
square and root gets cancel
5 - 2
3
Answer:
a) This is a permutation, there are 210 ways to do it
b) This is a permutation with 6 possibilities
c) This is a combination with a total of 1081575 possibilities
Step-by-step explanation:
a) Here the order does matter bacause it is not the same that they go to France in the weak trip than they go there for 2 days, as a result, this scenario is a permutation.
You need to pick 3 countries from a total of 7, but the order matters, so the total amount of ways to do this is
b) Here each permutation of 123 will give you a possible (and a different one from the others) lock-combination, so this is again a permutation.
The total amount of ways we have to do the selectio of the lock-combination is the total amount of permutations of a set of 3 elements, in other words, it is 3! = 6.
c) If you only cares about who advances to the finals, then the order doesnt matter here, you just want 8 people out of the 25 available. This is therefore a combination, and the total amount of possible cases are
.