1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
goldfiish [28.3K]
3 years ago
10

2 kids are always lying, the other 3 are always telling the truth. Julia: " Jack is only a liar, if John is telling the truth."

Jack: "If Joey doesn’t lie, then either Julia or John do." Joey: " Jane lies, as does Julia or Jack." John: "If Jack is telling the truth, then Julia or Joey do as well." Jane: "If you round up Julia, Joey and John, you will have at least one liar." The liars are_____
Mathematics
1 answer:
Nikolay [14]3 years ago
5 0
The liars are Jack and Jane
You might be interested in
Substitutions <br> y=x+4<br> y=3x+0
cluponka [151]

Answer:

x = 2

Step-by-step explanation:

since both equal y, you can set them equal to each other

x + 4 = 3x + 0

subtract x on both sides

4 = 2x

divide by 2 on both sides

2 = x

♡♡ hope this helped ♡♡

4 0
3 years ago
Read 2 more answers
Are the points B, F, and W coplanar?
Alla [95]
Where’s the picture of the angle?
4 0
3 years ago
Read 2 more answers
Please help ASAP! Will give BRAINLIEST! Please read the question THEN answer correctly! No guessing.
wlad13 [49]

Answer:

B

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Find the probability of at least 6 failures in 7 trials of a binomial experiment in which the probability of success in any one
oksano4ka [1.4K]

Answer:

P(x \geq 6)=P(X=6)+P(X=7)

And we can find the individual probabilities:

P(X=6)=(7C6)(0.91)^6 (1-0.91)^{7-6}=0.358

P(X=7)=(7C7)(0.91)^7 (1-0.91)^{7-7}=0.517

And replacing we got:

P(x \geq 6)=P(X=6)+P(X=7)= 0.358+0.517=0.875

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=1-0.09=0.91)

The probability associated to a failure would be p =1-0.09 = 0.91

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 to find this probability:

P(x \geq 6)=P(X=6)+P(X=7)

And we can find the individual probabilities:

P(X=6)=(7C6)(0.91)^6 (1-0.91)^{7-6}=0.358

P(X=7)=(7C7)(0.91)^7 (1-0.91)^{7-7}=0.517

And replacing we got:

P(x \geq 6)=P(X=6)+P(X=7)= 0.358+0.517=0.875

6 0
3 years ago
Michael’s weight can be represented by the expression 72x^5. Al’s weight can be represented by the expression 9x^7.
podryga [215]

Answer:

a) \frac{72x^5}{9x^7}

b) =\frac{8}{x^2}

c), Yes;8x^2

Step-by-step explanation:

Michael's Weight: 72x^5

Al's weight: 9x^7

a) Ratio of Michael's weight to Al's weight: \frac{72x^5}{9x^7}

b) This ratio simplifies to:  \frac{8\times 9x^5}{9x^5\timesx^2}

                                         =\frac{8}{x^2}

c) Yes, If the exponent in each expression were negative, then we have:

Ratio of Michael's weight to Al's weight: \frac{72x^{-5}}{9x^{-7}}

This ratio simplifies to:  8x^{-5--7}=8x^2

The two ratios are not the same.

3 0
3 years ago
Other questions:
  • Find measure &lt; BPD <br> A. 9 degrees<br> B. 146 degrees <br> C. 155 degrees <br> D. 14 degrees
    15·2 answers
  • Zeus Industries bought a computer for $2883. It is expected to depreciate at a rate of 27% per year. What will the value of the
    6·1 answer
  • Which of the following is equivalent to 30^1/2
    7·1 answer
  • A dinner party has 6 guests. How many ways can 6 chairs around a circular table
    5·2 answers
  • Solve 5(x + 3) = 3x - 4<br>Show clear algebraic working,​
    9·2 answers
  • Can anyone help me with number 10?
    7·1 answer
  • Write the slope-intercept of the equation of the line through the given point of (5, 0) with the slope 0.
    14·2 answers
  • Help me with this 4 2/7÷1 1/4
    15·1 answer
  • Find the value of the term in the arithmetic sequence using an = a^1+ (n-1)d. 3,5,7,9,11, (8th term)
    9·2 answers
  • NEED HELP ASAP?????<br><br> who kno this
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!