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3 years ago

If p is true and q is true, then ^p — ^ ~ q is true.

Mathematics

2 answers:

Otrada [13]3 years ago

8 0

Answer:

wat?

Step-by-step explanation:

Ede4ka [16]3 years ago

5 0

Answer:

okey???????????????????????? p and q is true got it.

You might be interested in

What is the value of the x-coordinate of point W? Enter your answer as a decimal to the nearest 0.5.

levacccp [35]

I attached a screenshot with the complete question.

Answer:
x-coordinate of point w is nearly -3.5

Explanation:
To get the x-coordinate of a certain point, we would need to read the value of this point on the horizontal axis (the x-axis).
Taking a look at point w, we would find that it is in the second quadrant. This means that it has a negative x-value.
Now, reading the x-value on the horizontal axis, we can see that it is nearly midway between points -3 and -4.
This means that point w is approximately -3.5

Hope this helps :)

6 0

3 years ago

The Jayden family eats at a restaurant that is having a 15% discount promotion. Their meal costs $78.64 before the discount, and

OLEGan [10]

Answer:

$82.57

Step-by-step explanation:

The tip they leave is ...

$78.64 × 0.20 = $15.73

The amount of the discount is ...

$78.64 × 0.15 = $11.80

Then the total cost of the meal and tip is ...

meal price - discount + tip

$78.64 -11.80 +15.73 = $82.57

6 0

2 years ago

Need help asap please and thank you

mylen [45]

$\blue{\huge{\red{\boxed{\green{\mathfrak{QUESTION}}}}}}$

SOLVE FOR X IN THE DIAGRAM

$\orange{\underline{\huge{\bold{\textit{\green{\bf{FORMULA}}}}}}}$

SUM OF ALL ANGLES ON STRAIGHT LINE IS 180°

$\bold{ \pink{GIVEN :- }}$

ANGLES :- 5x , (x+54°),90

$\huge\mathbb{\red A \pink{N}\purple{S} \blue{W} \orange{ER}}$

$5x + x + 54+ 90 = 180° \\ 6x + 144 = 180° \\ 6x = 180 - 144 \\ x = \frac{36}{6} \\ x = 6 \: \: ans$

7 0

3 years ago

Suppose 45% of the population has a college degree.

levacccp [35]

Using the normal distribution, there is a 0.2076 = 20.76% probability that the proportion of persons with a college degree will differ from the population proportion by greater than 3%.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean $\mu$ and standard deviation $\sigma$ is given by:

$Z = \frac{X - \mu}{\sigma}$

The z-score measures how many standard deviations the measure is above or below the mean.

Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

By the Central Limit Theorem, for a proportion p in a sample of size n, the sampling distribution of sample proportion is approximately normal with mean $\mu = p$ and standard deviation $s = \sqrt{\frac{p(1 - p)}{n}}$ , as long as $np \geq 10$ and $n(1 - p) \geq 10$ .

The proportion estimate and the sample size are given as follows:

p = 0.45, n = 437.

Hence the mean and the standard error are:

$\mu = p = 0.45$

$s = \sqrt{\frac{p(1 - p)}{n}} = \sqrt{\frac{0.45(0.55)}{437}} = 0.0238$

The probability that the proportion of persons with a college degree will differ from the population proportion by greater than 3% is <u>2 multiplied by the p-value of Z when X = 0.45 - 0.03 = 0.42</u>.

Hence:

$Z = \frac{X - \mu}{\sigma}$

By the Central Limit Theorem:

$Z = \frac{X - \mu}{s}$

Z = (0.42 - 0.45)/0.0238

Z = -1.26

Z = -1.26 has a p-value of 0.1038.

2 x 0.1038 = 0.2076.

0.2076 = 20.76% probability that the proportion of persons with a college degree will differ from the population proportion by greater than 3%.

More can be learned about the normal distribution at brainly.com/question/28159597

#SPJ1

8 0

1 year ago

What is the scale factor in the dilation?

BigorU [14]

<h3>Answer: Choice D) 2 & 1/2</h3>

Work Shown:

Length of AC = 10-4 = 6 units (I'm subtracting the x coordinates)

Length of A'C' = 25-10 = 15 units

Scale factor = (A'C')/(AC) = 15/6 = 5/2 = 2.5 = 2 & 1/2

Triangle A'B'C' has side lengths that are 2 & 1/2 times longer compared to the corresponding sides of triangle ABC.

3 0

3 years ago