Construct a 95% confidence interval for the population
standard deviation Η of a random sample of 15 crateswhich have a
mean weight of 165.2 pounds and a standard deviation of 10.4
pounds. Assume the

Answer: $13.65 per ticket

Step-by-step explanation:

54.6/4

Answer:

m = -5 / 10 = -1 / 2 = -0.5

Step-by-step explanation:

Z = xy

To solve for y, divide both sides by x.

Y = z/x

Answer:

\(\underline{z = xy} \\ \boxed{ y = \frac{z}{x} }\)

Answer:

Step-by-step explanation:

To increase the difference between 456.674 and 234.458 by 345.856, we follow the following steps :

Step 1: Subtract 456.674 from 234.458 and,

Step 2:  Add 345.856 to the result.

so,  456.674 - 234.458 = 222.216

222.216 + 345.856 = 568.072

Therefore, the increased difference between 456.674 and 234.458 by 345.856 is 568.072

Answer:

\(y=4x-6\)

Step-by-step explanation:

Okay, to do this we must understand what parallel means.

parallel means that that one line will NEVER touch the other. In order for this to happen they must be increasing (or decreasing) by the SAME rate. I.e the slope of your line must be the same as the lin in question thus our equation looks like,

\(y=4x+c\).

Now lets find \(c\).

To do this, plug the point (3,6) into the equation

6=4(3)+C

6=12+C

-6=C

Thus now that we know C, our equaiton is

\(y=4x-6\)

Answer:

y = 4 x - 6

Step-by-step explanation:

We have to know that,

If two lines are parallel the slopes of the two lines are equal but not the y - intercept.

In the equation,

y = m x + c

m ⇒ slope

c ⇒ y - intercept.

According to the question,

the equation they have given is,

y = 4x - 7

We have already find the slope of the new line.

That is,

m = slope = 4 (because the 2 lines are parallel)

Now we have to find y - intercept.

Let us find now.

( 3 , 6 ) ⇔ ( x , y )

y = m x + c

6 = 4 × 3 + c

6 = 12 + c

6 - 12 = c

-6 = c

There fore, the equation of the new line is,

y = m x + c

y = 4 x - 6

Hope this helps you :-)

Let me know if you have any other questions :-)

Answer:

0.01

Step-by-step explanation:

Answer:

$120 + -33% = $80.40

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

that's a very vague question

The system of linear equation which can be used to find the number of nickles n, and quarters q Anatoily has are n + q = 104  and 1/20(104 - q) + (1/4)q = 22there are total 20 nickels and 84 quarters Anatoily has.

According to the given question.

Total number of nickles and quarters Anatoily have is 104.

'n' represents the total numbers of nickles and 'q' represents total number of quarters. So, the linear equation which represents the given condition

⇒ n + q = 104

Since, 20nickles = 1 dollar

⇒ 1 nickle = 1/20 dollar

And, 4 quarters = 1 dollar

⇒ 1quarter = 1/4 dollar

Here, it is also given that combination of 104 nickels and quarters totaling $22.

So, we have an other linear equation $(1/20)n + $(1/4)q = $22

Form

n + q = 104

We can write

n = 104 - q

Substitute the value of n in $(1/20)n + $(1/4)q = $22

Therefore,

$1/20(104 - q) + $(1/4)q = $22

⇒ 5.2 - q/20 + q/4 = 22

⇒ 5.2 +  (-q + 5q)/20 = 22

⇒ 5.2 + 4q/20 = 22

⇒ 5.2 + q/5 = 22

⇒ q/5 = 22 - 5.2

⇒ q/5 = 16.8

⇒ q = 16.8 × 5

⇒ q = 84

Therefore,

n = 104 - 84

⇒ n = 20

Hence,  the system of linear equation which can be used to find the number of nickles n, and quarters q Anatoily has are n + q = 104  and 1/20(104 - q) + (1/4)q = 22there are total 20 nickels and 84 quarters Anatoily has.

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Answer:

7

(

x

−

2

)

−

7

x

−

14

=

0

7

(

x

−

2

)

−

7

x

−

14

=

07

(

x

−

2

)

−

7

x

−

14

=

0

Step-by-step explanation:

Answer: 0 = 0

Step-by-step explanation: i showed the steps with these screen shots

Answer:

Comparison Group

Step-by-step explanation:

Answered this question for another person on Brainly :)

Answer:

Randomized control and experimental groups

Answer:

Answer is a

Step-by-step explanation:

I think it's "A", im looking for answer as well :(

Answer:

4

Step-by-step explanation:

replace x with 2 then you get -1

Next step replace x with 5 then u get 5

Add 5 and -1. You get four.

The value of  f(2) + f(5) in f(x) = 2x - 5 is 4.

A function can be defined as the outputs for a given set of inputs.

The inputs of a function are known as the independent variable and the outputs of a function are known as the dependent variable.

Given,  f(x)= 2x-5, therefore f(2) + f(5) can be obtained if we replace x with numerical values 2 and 5 in f(x) which is,

f(2) + f(5) = 2(2) - 5 + 2(5) - 5.

f(2) + f(5) = 4 - 5 + 10 - 5.

f(2) + f(5) = 4

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a. The probability of a pregnancy lasting 309 days or longer is approximately 0.0035.

b. Babies born on or before 240 days are considered premature.

a. The probability of a pregnancy lasting 309 days or longer can be found by calculating the z-score and using the standard normal distribution table. First, we calculate the z-score using the formula:

z = (x - μ) / σ

where x is the desired value (309 days), μ is the mean (269 days), and σ is the standard deviation (15 days). Substituting the values, we get:

z = (309 - 269) / 15 = 40 / 15 = 2.67

Next, we look up the z-score of 2.67 in the standard normal distribution table and find the corresponding probability. The table shows that the area to the left of the z-score of 2.67 is approximately 0.9965. However, we are interested in the probability of the pregnancy lasting 309 days or longer, so we subtract this value from 1:

P(X ≥ 309) = 1 - 0.9965 = 0.0035

Therefore, the probability that a pregnancy will last 309 days or longer is approximately 0.0035.

b. To find the length that separates premature babies from those who are not premature, we need to determine the value that corresponds to the lowest 3% in the distribution. This is equivalent to finding the z-score that has an area of 0.03 to its left. We look up this z-score in the standard normal distribution table and find it to be approximately -1.88.

To find the corresponding length, we use the z-score formula:

z = (x - μ) / σ

Rearranging the formula to solve for x:

x = μ + z * σ

Substituting the values, we have:

x = 269 + (-1.88) * 15 = 269 - 28.2 = 240.8

Rounding to the nearest integer, we conclude that babies born on or before 240 days are considered premature.

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A chi-square test of independence is indeed a one-tailed test. The reason for this is that we are testing whether the observed frequencies of two categorical variables are significantly different from the expected frequencies.

We square the deviations between the observed and expected frequencies, and since deviations can only be positive, the test statistic always lies at or above zero. Hypothesis tests are one-tailed when dealing with sample data because we have a specific direction for our research question. In the case of a chi-square test of independence, we are interested in whether one variable is dependent on the other variable, so we have a directional hypothesis. Furthermore, the chi-square distribution is positively skewed, meaning that the majority of the distribution is on the right-hand side. This is important to consider when interpreting the results of a chi-square test.

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to factor we must recognize the elements in common

the r exist on both terms, so we can divide by r on each term to factor

Answer: A. Mean = 9.56, Median = 11, Mode = 7

Step-by-step explanation:

The mean, median and the mode for the given data is 9.56, 9, and 7 respectively.

Given data below:

In order to find the mean, it can be calculated by dividing a sum of all the data points with the number of data points in the data set.

The formula is:

\(\bar{M}=\dfrac{\sum M}{N}\)

\(\bar{M}=\dfrac{4+6+7+7+9+11+13+14+15}{9}\)

\(\bar{M}=\dfrac{86}{9}\)

\(\bar{M}=9.56\)

Next, we will find the median.

In order to find the median, we got to place the numbers in value order and find the middle.

So,

\(\text{Median}=9\)

Lastly, we will find the mode.

To find the mode, order the numbers lowest to highest and see which number appears the most often.

So,

\(\text{Mode}=7\)

Thus, the mean, median and the mode for the given data is 9.56, 9, and 7 respectively.

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The first 20 multiples of 27 are as follows:

27, 54, 81, 108, 135, 162, 189, 216, 243, 270, 297, 324, 351, 378, 405, 432, 459, 486, 513, and 540.

A multiple in mathematics is created by multiplying any number by an integer.

In other words, if b = na for some integer n, known as the multiplier, it can be said that b is a multiple of a given two numbers, a and b.

This is equivalent to stating that b/a is an integer if an is not zero.

A is known as a divisor of b when a and b are both integers and b is a multiple of a.

First 20 multiples of 27:

27, 54, 81, 108, 135, 162, 189, 216, 243, 270, 297, 324, 351, 378, 405, 432, 459, 486, 513, and 540.

Therefore, the first 20 multiples of 27 are as follows:

27, 54, 81, 108, 135, 162, 189, 216, 243, 270, 297, 324, 351, 378, 405, 432, 459, 486, 513, and 540.

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Correct question:

What are the first 20 multiples of 27?

Answer:

p=2/3 mn

p/n=2/3 m(

(3)p/n=2/3(3)m

3p/n=2m

3p/2n=2m/2

3p/2n=m (letter B)

The simplified expression using De Morgan's law are  a)x'y'z'u  b)x'y'u c): x'y'u and d)x'y'z'+xy'z'+xyz.

The main idea is to simplify each Boolean expression by repeatedly applying De Morgan's law until each complement operation operates on a single variable.

Then, apply the double complement law to simplify the expression further. In the end, the simplified expression should contain only AND and OR operations without any complement operators acting on multiple variables.

a. 1/ x + yz + u can be simplified using De Morgan's law to: (x'y'z')u'. Then, applying the double complement law, we get the simplified expression as: x'y'z'u.

b. 1/x(y + 2)u can be simplified using De Morgan's law to: x'(y'+2')u'. Then, applying the double complement law, we get the simplified expression as: x'y'u.

c. 1/(x + y)(uv + xy) can be simplified using De Morgan's law to: (x'y')(u' + x'y'). Then, applying the double complement law, we get the simplified expression as: x'y'u.

d. 1/xy + yz + xz can be simplified using De Morgan's law to: (x'+y')(y'+z')(x'+z'). Then, applying the double complement law, we get the simplified expression as: x'y'z'+xy'z'+xyz.

In summary, to simplify Boolean expressions, we can apply De Morgan's law repeatedly and then use the double complement law to remove complement operators acting on a single variable twice.

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Answer:

X is 10 Y is 6

Step-by-step explanation:

The square root of the decimal number is √0.0016 = 0.04

Here we can find the square root of the decimal number:

N = 0.0016

Notice that we can write this number as:

0.0016 = 16*10⁻⁴

Now we can take the square root of that, so we will get:

√(16*10⁻⁴)

We can distribute the square root to get:

√16*√10⁻⁴

These two are easy, we will get:

√16*√10⁻⁴ = 4*10⁻² = 0.04

That is the square root.

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Answer:

1

Step-by-step explanation:

3 divided by 1/3 is 9, and 9-9=0

0+1=1

1

Step-by-step explanation:

Answer: The odds in favor of an event happening are the ratio of the probability of the event happening to the probability of the event not happening. To find the odds in favor of an event, you can use the formula:

Odds in favor = probability of event occurring / (1 - probability of event occurring)

In this case, the event is that Adam will see a meteor in the next 10 minutes. The probability that this event will occur is 0.56. Therefore, the odds in favor of this event occurring are:

Odds in favor = 0.56 / (1 - 0.56)

= 0.56 / 0.44

= 1.27

So, the odds in favor of Adam seeing a meteor in the next 10 minutes are 1.27 to 1.

It means that Adam is 1.27 times more likely to see a meteor in the next 10 minutes than not seeing one.

Step-by-step explanation:

The odds in favor of Adam seeing a meteor in the next 10 minutes are 14 : 11

The end behavior of the graph of f(x) = -0.25x2 - 2x + 1 is that A) As x increases, f(x) increases. As x decreases, f(x) decreases.

The end behavior of a function f tells us that the way that the graph function behaves at the "ends" of the x-axis.

Note that the end behavior of a function tells the trend of the graph and in this graph, f(x) -----> +∞ as x----> -∞  (as the value of x decreases the value of f(x) increases) and  f(x) -----> -∞ as x----> +∞ (as the value of x increases the value of f(x) decreases).

Therefore, The end behavior of the graph of f(x) = -0.25x2 - 2x + 1 is that A) As x increases, f(x) increases. As x decreases, f(x) decreases.

See full question below

What is the end behavior of the graph of f(x) = -0.25x2 - 2x + 1?

A) As x increases, f(x) increases. As x decreases, f(x) decreases.

B) As x increases, f(x) decreases. As x decreases, f(x) decreases.

C) As x increases, f(x) increases. As x decreases, f(x) increases.

D) As x increases, f(x) decreases. As x decreases, f(x) increases

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The difference in the areas of the signals based on the information given is 549.5km².

The formula to calculate the area of a circle will be:

= πr²

where r = radius

Mast 1 broadcast radio signals that can be heard within a radius of 15km. The area will be:

= πr²

= 3.14 × 15²

= 706.5km²

Mast 2 broadcast radio signals that can be hear within a radius of 20km. The area will be:

= πr²

= 3.14 × 20²

= 1256km²

The difference in the areas will be:

= 1256km² - 706.5km²

= 549.5km²

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Complete question

Mast 1 broadcast radio signals that can be heard within a radius of 15km.

Mast 2 broadcast radio signals that can be hear within a radius of 20km.

Calculate the difference in the areas of the signals.

Answer:

ii) Obtuse? iii) Right? Thus, the two acute angles cannot be supplementary angles. Thus, the two obtuses angles cannot be supplementary angles.

Answer:

since acute angles obtuse angles cannot be supplementary angles Thus, right angles are supplementary angles

Answer:

8 hours

Step-by-step explanation:

3 1/5 cups, he drinks 2/5 cups every hour

to find the number of hours he has water for, divide the 2 numbers

3 1/5 = 16/5

16/5 divided by 2/5 is equal to 16/5 times 5/2

80/10 equals 8, so he will have water for 8 hours

There are 1287 different ways to arrange five different oranges and 12 different apples so that no two oranges are next to each other.

For the data given in the question-

There are 12 identical apples and five distinct oranges.

Arrange them such that no two oranges are side by side.

The separator method, which uses the apples as separators, was used to solve this puzzle.

_1_1_1_1_1_1_1_1_1_1_1_1_

Due to the fact that there are currently 13 empty spots,

Number of ways = ¹³C₅

¹³C₅ = 1287 ways.

Thus, there are 1287 different ways to arrange five different oranges and 12 different apples so that no two oranges are next to each other.

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The value of the greater integer is -8.

Given,

The sum of an integer and 6 times the next consecutive integer = -50

We have to find the value of the greater integer:

Let's take x as the integer.

Next consecutive integer be (x + 1)

Now,

x + 6(x + 1) = -50

x + 6x + 6 = -50

7x + 6 = -50

7x = -50 - 6

7x = -56

x = -56/7

x = -8

The value of x is -8.

Now,

x + 1 = -8 + 1 = -7

That is,

-8 + (6 × -7) = -50

-8 -42 = -50

Here, the integers are of negative values.

So, the value of greater integer be -8.

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