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iris [78.8K]
3 years ago
13

In a3×3 table, the sum of the numbers in any row and any column is zero. It is known that the number of zeros in the table is ev

en. What is the largest number of zeros?
Mathematics
1 answer:
Bumek [7]3 years ago
3 0
Answer:
zero

explanation:
an example is
1 2 -3
2 -3 1
-3 1 2
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Factor the expression 14x+13-8x-1
Agata [3.3K]

Answer:

2(11x+6)

Simplify to 22x + 12

Greatest common factor is 2

2x11x = 22

2x6 = 12

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2 years ago
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If b= 18^3 in the right triangle below, what is the value of c?
dolphi86 [110]
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A tennis player makes a successful first serve 51% of the time. If she serves 9 times, what is the probability that she gets exa
aleksley [76]

Answer:

P(X=3)

And we can use the probability mas function and we got:

P(X=3)=(9C3)(0.51)^3 (1-0.51)^{9-3}=0.1542  

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=9, 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!}  

And we want this probability:

P(X=3)

And we can use the probability mas function and we got:

P(X=3)=(9C3)(0.51)^3 (1-0.51)^{9-3}=0.1542  

4 0
3 years ago
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Answer:

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x = 15.2

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Y is greater or equal than negative 2x plus 3
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y  \geqslant  - 2x + 3
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