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Shalnov [3]
2 years ago
8

3. Use De Morgan's laws to write an equivalent statement for the given sentence. If Ashley buys a house, then she will not buy a

new car or she will look for a second job. Which statement is equivalent to the given sentence?
A. If Ashley buys a house, then it is false that she will buy a new car or she will not look for a second job.


B. If Ashley buys a house, then it is false that she will buy a new car and she will not look for a second job.

C. If Ashley does not buy a house, then it is false that she will buy a new car and she will no look for a second job.

D. If Ashley does not buy a house, then it is false that she will buy a new car or she will not look for a second job.​
Mathematics
1 answer:
Usimov [2.4K]2 years ago
6 0
It’s A I just took the test
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IceJOKER [234]
Thousandths should be 3
7 0
3 years ago
I need help :( please
Maksim231197 [3]

Answer:

I think it is D

Step-by-step explanation:

Its saying that f of x is four times x. So if x was one it could be four. But if x was greater than one it would be higher than one. Therefore, I think that the answer should be all real numbers greater than or equal to four.

Hope this helped!!! Let me know if I was correct. Haven't done this in years.

4 0
2 years ago
Read 2 more answers
16.
Dmitry_Shevchenko [17]
Chaliye apni maa chudaiye
4 0
3 years ago
Suppose that Upper X has a discrete uniform distribution f left-parenthesis x right-parenthesis equals StartLayout left-brace1st
emmasim [6.3K]

Answer:

the probability that the sample mean is greater than 2.1 but less than 2.4 is 0.2444

Step-by-step explanation:

Given the data in the question;

x        f(x)         xp(x)               x²p(x)

1         1/3        0.33333        0.33333

2        1/3        0.66667        1.33333

3        1/3        1.00000        3.0000

∑                    2.0000          4.6667

∑(xp(x)) = 2

∑(x²p(x)) = 4.6667

Variance σ² = ∑(x²) - ∑(x)² = 4.6667 - (2)² = 4.6667 - 4 = 0.6667

standard deviation σ = √variance = √0.6667 = 0.8165

Now since, n = 33 which is greater than 30, we can use normal approximation

for normal distribution z score ( x-μ)/σ

mean μ = 2

standard deviation = 0.817

sample size n = 33

standard of error σₓ = σ/√n = 0.817/√33 = 0.1422

so probability will be;

p( 2.1  < X < 2.4 ) = p(( 2.1-2)/0.1422) <  x"-μ/σₓ  <  p(( 2.4-2)/0.1422)

= 0.70 < Z < 2.81    

=  1 - ( 0.703 < Z < 2.812 )

FROM Z-SC0RE TABLE

=  1 - ( 0.25804 + 0.49752 )

= 1 - 0.75556

p( 2.1  < X < 2.4 ) = 0.2444

Therefore,  the probability that the sample mean is greater than 2.1 but less than 2.4 is 0.2444

7 0
3 years ago
Find the domain and range of the exponential function h(x) = –343^x. Explain your findings. As x decreases, does h increase or d
Snowcat [4.5K]

Answer:

As x decreases, h increases (but never touches)

As x increases, h decreases (but never touches)

Step-by-step explanation:

If you graphed the exponential, you would be able to see that it is stuck in the 3rd quadrant.

Domain: (negative infinity, 1)

Range: (negative infinity, 0)

7 0
3 years ago
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