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olya-2409 [2.1K]
3 years ago
12

HELP PLEASE!nvm lololololoololl

Mathematics
2 answers:
antoniya [11.8K]3 years ago
6 0

Answer:

I can't help you, it doesn't indicate what you need

astra-53 [7]3 years ago
4 0
Lolololololololololol

Why you say nvm ?
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HELP
TiliK225 [7]
I think it’s B I’m not sure about it but I hate wan I gat it wrong.
8 0
2 years ago
A research team at Cornell University conducted a study showing that approximately 10% of all businessmen who wear ties wear the
LenKa [72]

Answer:

a) The probability that at least 5 ties are too tight is P=0.0432.

b) The probability that at most 12 ties are too tight is P=1.

Step-by-step explanation:

In this problem, we could represent the proabilities of this events with the Binomial distirbution, with parameter p=0.1 and sample size n=20.

a) We can express the probability that at least 5 ties are too tight as:

P(x\geq5)=1-\sum\limits^4_{k=0} {\frac{n!}{k!(n-k)!} p^k(1-p)^{n-k}}\\\\P(x\geq5)=1-(0.1216+0.2702+0.2852+0.1901+0.0898)\\\\P(x\geq5)=1-0.9568=0.0432

The probability that at least 5 ties are too tight is P=0.0432.

a) We can express the probability that at most 12 ties are too tight as:

P(x\leq 12)=\sum\limits^{12}_{k=0} {\frac{n!}{k!(n-k)!} p^k(1-p)^{n-k}}\\\\P(x\leq 12)=0.1216+0.2702+0.2852+0.1901+0.0898+0.0319+0.0089+0.0020+0.0004+0.0001+0.0000+0.0000+0.0000\\\\P(x\leq 12)=1

The probability that at most 12 ties are too tight is P=1.

5 0
3 years ago
What fraction is equal to .66?<br><br> A.1/3<br><br> B.1/5<br><br> C.2/3<br><br> D.2/4
photoshop1234 [79]
2/3 is the answer. 

<span>1/3 is equal to 33.33333333% </span>

<span>so 2/3 is equal to 66.6666666%</span>
8 0
3 years ago
9(2a+2) equivalent expression
ollegr [7]
Multiply 9 by 2a and 2, and you get 18a + 18. Another equivalent expression would be 18(a+1), which you can get by factoring the above answer.
3 0
3 years ago
I need help with two and three
Tasya [4]

#2) 435+25x=875-15x

40x=440

x=11

the answer is 11 weeks.

#3) 2500(3x) for x=10

2500(3*10)

2500(30)

7500

the answer is 7500 bacteria after 10 months.

3 0
3 years ago
Read 2 more answers
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