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alisha [4.7K]
3 years ago
11

What is the greatest common factor shared by 20 and 10

Mathematics
2 answers:
azamat3 years ago
8 0

Answer: 10

Step-by-step explanation:

LenKa [72]3 years ago
8 0
Answer is 10 (ten) ........
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Chris and Alex are friends who have summer jobs as waiters. The distribution of Chris’s weekly tips is approximately normal with
Mashcka [7]
D I’m pretty positive
4 0
3 years ago
Assume that when adults with smartphones are randomly​ selected, 51​% use them in meetings or classes. If 7 adult smartphone use
Morgarella [4.7K]

Answer:

P(X \geq 3) = 1-P(X

If we find the individual probabilities we gotL

P(X=0)=(7C0)(0.51)^0 (1-0.51)^{7-0}=0.0068  

P(X=1)=(7C1)(0.51)^1 (1-0.51)^{7-1}=0.0494  

P(X=2)=(7C2)(0.51)^2 (1-0.51)^{7-2}=0.1543

And replacing we got:

P(X \geq 3) = 1- [0.0068 +0.0494 +0.1543]= 0.7895

Step-by-step explanation:

Previous concepts  

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".  

Solution to the problem  

Let X the random variable of interest, on this case we now that:  

X \sim Binom(n=7, p=0.51)  

The probability mass function for the Binomial distribution is given as:  

P(X)=(nCx)(p)^x (1-p)^{n-x}  

Where (nCx) means combinatory and it's given by this formula:  

nCx=\frac{n!}{(n-x)! x!}  

For this case we want to find this probability:

P(X \geq 3)

And we can use the complement rule for this case:

P(X \geq 3) = 1-P(X

If we find the individual probabilities we gotL

P(X=0)=(7C0)(0.51)^0 (1-0.51)^{7-0}=0.0068  

P(X=1)=(7C1)(0.51)^1 (1-0.51)^{7-1}=0.0494  

P(X=2)=(7C2)(0.51)^2 (1-0.51)^{7-2}=0.1543

And replacing we got:

P(X \geq 3) = 1- [0.0068 +0.0494 +0.1543]= 0.7895

 

7 0
3 years ago
Marissa subtracted a negative number from a positive number. Her result was negative. Is that reasonable
NISA [10]

Answer:

No.

Step-by-step explanation:

If Marissa subtracts a negative number, it would be like - -x, which is x. So, her result would be positive.

Hope this helps!

5 0
3 years ago
A 27- inch long ribbon was cut into 4 equal lengths. How long was each piece of ribbon?
11Alexandr11 [23.1K]

Answer:

6.75 I think

Step-by-step explanation:

Just do 27 divided by 4

4 0
3 years ago
Shane bought lunch for $5.38 and a shirt for $15.95. He then used the rest of his money to buy a book. He spent a total of $38.1
vovangra [49]
Sense the total would only be $38.12, we would then only want to find out how much would the book be, and that would be it. We would then want to add both how much the shirt and also the lunch was in total, and by doing this, we would the have to subtract this amount from the total that Shane has spent in total.

\boxed{5.38+15.95 = 21.33 \ \sf(the \ amount \ of \ both \ lunch \ and \ shirt)}

As we noted above, we then subtract both this total, and the amount that Shane has spent in this day.

\boxed{38.12-21.33 = \bf{16.79} \Leftarrow \ (the \ cost \ of \ book)}

Your answer: The book that Shane has purchased was a total of only 16.79.

16.79 would be your answer.


6 0
4 years ago
Read 2 more answers
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