Find the amount in UK£ equivalent to US$100.
2 answers:
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Answer:
<em>z </em>= 9
Step-by-step explanation:
ln 63 = ln z + ln 7
We have the formula:
ln A + ln B = ln AB
So, ln 63 = ln 7<em>z</em>
7<em>z </em>= 63
Divide both sides by 7.
<em>z</em> = 9
We want to choose 4 people and we have 6 people to choose from. This is a combination of 6, 4 by 4. Also called <em>six choose four</em>.
The following formula:
Is the combination of objects choosen from a total of
. It's
choose
.
For our problem, we just need to compute the following:
Thus
Therefore the answer is 15 different combinations