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adell [148]
3 years ago
12

Three friends eat lunch together. if the bill comes to $21 plus 10% of tax,how much will each person owe

Mathematics
1 answer:
steposvetlana [31]3 years ago
5 0
So first you have to multiply 21 by .1 to figure out ten percent 
you then get 2.1 
you add 21 and 2.1 together and get 23.1
then since you have 3 people you divide by 3 and get 7.7
therefor 7.7 is your answer 
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Answer:

{0.16807, 0.36015, 0.3087, 0.1323, 0.02835, 0.00243}

Step-by-step explanation:

The expansion of (p+q)^n for n = 5 is ...

(p+q)^5 = p^5 +5·p^4·q +10·p^3·q^2 +10·p^2·q^3 +5·p·q^4 +q^5

When the probability p=0.3 and q = 1-p = 0.7 the terms of this series correspond to the probabilities of 5, 4, 3, 2, 1, and 0 favorable outcomes out of 5 trials.

For example, p^5 = 0.3^5 = 0.00243 is the probability of 5 favorable outcomes in 5 trials where the probability of each favorable outcome is 0.3.

___

The attachment shows the calculation of these numbers using a graphing calculator. It lists them in reverse order of the expansion of (p+q)^5 shown above, so that they are the probabilities of 0–5 favorable outcomes in the order 0–5.

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igor_vitrenko [27]

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Step-by-step explanation:

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3 years ago
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Alja [10]

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<u>Use synthetic division</u>

-5 | 1 -4  3   7

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Since the remainder is not 0, then x+5 is not a factor of the polynomial

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