three women are selected from the audience of a style show to receive a purse, a pair of gloves, and a scarf. if 23 women are present, in how many different ways may the gifts be given?

It belongs to isometric sampling or systematic sampling in every fifth adult entering an airport is checked for extra security screening.

What is systematic sampling?

Systematic sampling is a type of probability sampling method in which sample members from a larger population are selected according to a random starting point but with a fixed, periodic interval. This interval, called the sampling interval.

Security workers at an airport randomly choose one of the first 50 people to pass through a checkpoint for extra security screening.

After that person, they choose every 50th person who passes through for extra screening as well

By the topic

The sampling interval is 50, which is periodic.

It belongs to isometric sampling or systematic sampling.

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The answer of the given expression as a common fraction in lowest terms is  437/495  .

In the question ,

it is given that ,

the expression is 0.4overline 8 + overline 0.37 ,

that can be written as [tex]0.4\overline{8}[/tex] + [tex]0.\overline{37}[/tex]

On further simplifying the above expression further ,

we get ,

= (48 - 4)/90 + 37/99

= 44/90 + 37/99

taking the LCM of 90 and 99 as 990 and solving further ,

we get ,

= 484/990 + 390/990

= ( 484 + 390 )/990

= 874/990

in lowest form it is = 437/495 .

Therefore , the answer to the expression is  437/495  .

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Answer:

12x^2.y^2 + 2xy - 2

Step-by-step explanation:

I put the dot so you don't get confused thinking it is 2y. Tell me if I misinterpreted the question

Answer:

36.9 gallons were used in one month.

Step-by-step explanation:

In order to find this out, we first take 3/5 and convert it into a decimal by dividing each other:

3 ÷ 5 = 0.6

Then, we can set up this equation to figure out how much gallons of gasoline was used:

0.6 x 61.5 = 36.9

May I have Brainliest please? My next rank will be the highest one: A GENIUS! Please help me on this journey to become top of the ranks! I only need 2 more brainliest to become a genius! I would really appreciate it, and it would make my day! Thank you so much, and have a wonderful rest of your day!

Answer: 36.9 gallons were used in one month.

Step-by-step explanation:

In order to find this out, we first take 3/5 and convert it into a decimal by dividing each other: 3 ÷ 5 = 0.6

Then, we can set up this equation to figure out how much gallons of gasoline was used: 0.6 x 61.5 = 36.9

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Mr Jones have to drive 270 miles to get to his home

The question is a percentage problem, percentage deals with a fraction hundred and used to solve the problem

From the equation 180 miles represents 40% of the journey

let the total journey be x, hence we say

0.4x = 180

x = 180 / 0.4

x = 450 miles

Then the 60% left is calculated

60% of 450

= 0.6 * 450

= 270 miles

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p < 0.05, there is sufficient evidence to conclude that the machines' maker should perform a recalibration.

Given,

The test statistics formula for finding the z-score is,

z = (X - μ)/(σ/√n)

Where,

X = sample mean

μ = population mean

σ = population standard deviation

n = sample size

This z-score is used to determine the p-value. The null hypothesis is not rejected if p > α, and it is rejected if p < α.

Here,

The population mean μ = 4.00

The sample size n = 196

The sample mean X = 4.14

The standard deviation σ = 0.83

The significance level α = 0.05

So, the hypothesis is:

The null hypothesis: H0: μ = 4

The alternative hypothesis: Ha: μ ≠ 4

Thus, the test statistic value is,

z = (X - μ)/(σ/√n)

= (4.14 - 4)/(0.83/√196)

= 2.36

So, for z = 2.36, the p-value is 0.009137

Therefore,

The provided significance level of 0.05 is not met by the p-value of (0.009137). Therefore, there is enough evidence to support the claim that the machines' manufacturer needs to recalibrate them.

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Answer:

square root 75

Step-by-step explanation:

An inequality that can be used to find t the amount of money in dollars is

c)t ≤ 350, t is less than or equal to 350. So, correct option is c.

In science, a disparity or an inequality is a connection which makes a non-equivalent examination between two numbers or other numerical expressions. It is utilized generally normal to look at two numbers on the number line by their size. There are a few unique documentations used to address various types of disparities:

The documentation a < b implies that an is not as much as b.

The documentation a > b implies that an is more noteworthy than b.

Regardless, an isn't equivalent to b. These relations are known as severe inequalities, implying that an is completely not exactly or rigorously more prominent than b. Identicalness is barred.

We have Alex total amount =$600 and amount which he want on his account after spending is $250.

So,t+250 ≤600

=>t≤ 600-250

=>t≤ 350.

Hence, option c is correct.

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(Complete question) is:

Alexandra has $600 in her checking account. She wants to spend part of this money on a computer. She wants to have at least $250 left in her checking account after buying the computer. The inequality shown can be used to find t, the amount of money in dollars that Alexandra can spend on the computer.

Which inequality represents all possible values of t?

a)t ≥ 350,

t is greater than or equal to 350

b)t ≤ 850,

t is less than or equal to 850

c)t ≤ 350,

t is less than or equal to 350

d)t ≥850,

t is greater than or equal to 850

Answer:

78 in²   (Choice B)

Step-by-step explanation:

Since they have exploded the 3-D cuboid into 2-D, it is easier to compute

Looking at the 2-D version you can see 4 rectangles each 3" x 5"

At the bottom on each side are 2 squares each 3" x 3"

Area of a rectangle = l x w

In this case, area of each rectangle = 3 x 5 = 15

Since there are 4 rectangles, total area of these four = 4 x 15 = 60 in²

Each square is area 3" x 3" = 9"

Since there are 2 such squares, total area of these two = 9 x 2 = 18in²

Total area of the 2-D blowup which is the same as the Surface Area of the prism = 60 in² +  18in² = 78 in²

Answer: 4in

Step-by-step explanation:

Answer:

x = 1, p = 32

Step-by-step explanation:

4(4x+4) = 2(x+2x+13)

16x+16 = 6x+26

10x+16=26

10x=10

x=1

4(4(1)+4) = 4(4+4) = 4(8) = 32

7% percentage of adults overall who would say they felt their pain was relieved after taking each painkiller.

Given that,

In a study comparing the perceived effects of two painkillers, 200 randomly chosen persons were given the first one, and 93% reported noticeably lessening of their pain. 96% of the 450 people who received the other painkiller reported feeling noticeably relieved.

We have to estimate the percentage of adults overall who would say they felt their pain was relieved after taking each painkiller. give the estimate's 95% confidence interval.

We know that,

p=(186+432)/(200+450)

p=0.95

We get

L.B= 0.93-0.96+0.96√0.95(1-0.95)(1/200+1/450)

L.B= 0.07

Therefore, 7% percentage of adults overall who would say they felt their pain was relieved after taking each painkiller.

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The purpose of accounts receivable confirmations is to obtain third-party verification of the account's balance and to determine how frequently misstatements take place.

Here,

Only a small portion of the entire population is often subject to accounts receivable confirmation. The confirmation's goals are to gain external confirmation of the account's balance and to get a sense of how frequently misstatements in the accounts occur.

The majority of errors revealed by discrepancies on the confirmation replies won't be significant; however, discrepancies must be examined individually and collectively to establish their impact on the total balance of accounts receivable.

Even while the discrepancies between individuals may not be significant, they could point to a significant issue with the internal controls over accounts receivable when applied to the entire population.

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The equation of the line in point slope form is y = -1/4x + 17/2.

The slope of the equation of the line is given as;

slope m = -1/4

Passing point = (-2,9)

Equation of the line;

y - y1 = m(x - x1)

y - 9 = -1/4(x + 2)

y = -1/4x -1/2 + 9

y = -1/4x + 17/2

Thus, the equation of the line in point slope form is y = -1/4x + 17/2.

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Technically, it would be impossible to truly know without "computing" at all, but once you add 2 and 3, you would be able to know that the sum of all three numbers of positive without accounting for the -2, because 6 is a greater absolute value than -1.

Some examples:
12 + - 4
7 + - 3
18 + -10

All will be positive because those positive numbers (12, 7, 18) are greater than the others (4, 3, 10).

Answer:

(x+6)(x-)

Step-by-step explanation:

The 20 questions test answers may a student mark 8192 ways.

What is the combinations?

A combination in mathematics is a choice made from a group of separate elements where the order of the selection is irrelevant.

Since there are 20 questions, and each question can be answered in if 7 questions mark correctly and 13 incorrectly then:

7 questions can be answered correctly.

13 questions can be answered incorrectly.

The 2 questions can be answered in

2 × 2 ways.

The 3 questions can be answered in 2×2×2 ways and so on.

So we have:

1 × 1 × 1 × 1 × 1 × 1 × 1 × 2¹³

= 8192

Hence, the 20 questions test answers may a student mark 8192 ways.

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The value of the vector VU is <44, 40>

Vector:

in math vector consist an object that has both a magnitude and a direction.

Given:-

Here we have the vector v and u with the value of v = <11, 5> and the value of u = <4, 8>.

Now, we have to find the value of VU.

In order to find the value of VU, we have to perform the multiplication operation on the given vector,

In order to perform the multiplication on it, we have to arrange them in the following order,

=> VU = <11, 5> x <4,8>

Now, we have to combine the values like the following,

=> <(11 x 4) , (5 x 8)>

Now, do the multiplication then we get,

=> <44, 40>

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The score that Alaina would have to get to tie the winning team's score is of:

4.4 meters.

The combined score of the winning team is given as follows:

25.6 m.

The scores of Alaina's teammates are given as follows:

5.46 m, 4.84 m, 4.92 m, 5.98 m.

Considering Alaina's score, the scores of her team are given as follows:

5.46 m, 4.84 m, 4.92 m, 5.98 m, x m.

In which x is the unknown Alaina's score.

Then their combined scores are given as follows:

5.46 + 4.84 + 4.92 + 5.98 + x = 21.2 + x.

The scores will be tied when they are equal, that is:

21.2 + x = 25.6.

Then the score that Alaina needs is obtained as the subtraction of 25.6 and 21.2, as follows:

x = 25.6 - 21.2

x = 4.4 meters.

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The probability that a car chosen to random will need:

A) no repairs: 72%

B) No more than one repairs: 89%

C) some repairs: 11%

The total amount of cars that will need some type of repair is 28%; 17% will need to be repaired once + 7% will need to be repaired twice + 4% will need to be repaired more than two times.

The amount of cars that wouldn´t need any type of repairs is the total amount of cars minus the percentage that need some type of repair:                

                                   100% - 28% = 72%.

The amount of cars that will need no repairs or only one repair is the total amount of cars minus the percentage that need more than one of repair:

                             100% - (7% + 4%) = 89%.

The amount of cars that need some repairs is the sum of those cars that need two repairs plus those that need three or more repairs:

                                  7% + 4% = 11%

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Answer:

$14.45

Step-by-step explanation:

To make the equation easier you would have to make the percent decimal and to do that move it twice to the left. So it would be 0.17 x 85 which is 14.45 and add that dollar sign there. :)

Under the Binomial and Poisson distributions gives approximate result is p → 0 n → ∞.

Unlike, in the case of a Binomial distribution, for a Poisson distribution, the knowledge of number of trials to get the observed number of successes is not required. The Poisson distribution has only one parameter namely “m” the mean number of successes per given unit of time.

The Poisson distribution is often taken as a limiting case of Binomial distribution, under the following conditions.

The number of trails is indefinitely large i.e., n → ∞

The probability of success, “p” is very small i.e., p → 0

np is finite i.e., np = m where p = m/n and q = 1 – m/n and m > 0.

However, it is not defined if “n” is large means how large and “p” is closed to zero means how small? It is left to the readers to assume how large n should be and how small p should be? As mentioned earlier, the Poisson distribution is often described as a limiting case of Binomial distribution.

Based on the results of the study , published by me clearly proves that even when 10 ≤ n ≤50 and p ≤ 0.2, the Poisson distribution can be a good approximation to Binomial distribution.

Hence the answer is Under the Binomial and Poisson distributions gives approximate result is p → 0 n → ∞.

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The probability that:

A student has a cat and they do not have a dog = 1/8 or 0.125.

Use the concept of probability defined as:

Probability is the ratio of:

The number of favorable outcomes to the total number of outcomes for an event's taking place.

Given that,

The number of students in the class = 25

[tex]5[/tex] students have a cat.

[tex]9[/tex] students have a dog.

[tex]3[/tex] students have both a cat and a dog.

The objective is to find the probability that given that they don't have a dog, a student has a cat.

To find the probability that one of the pupils has a cat because there isn't a dog in the class:

First, determine the total number of pupils without a dog..

Since there are 25 students in total and 9 have a dog,

Now, 25 - 9 = 16

So the number of students who do not have a dog = 16

Now, determine the number of students who have both a cat and a dog.

According to the question:

There are 3 students who have both,

Subtract this from the percentage of students who own cats.

Therefore,

5 - 3 = 2

So, there are 2 students who have a cat but not a dog.

[tex]Probability = \frac{\text{(Number of students with only a cat)}}{\text{ (Number of students who do not have a dog)}}[/tex]

Probability = 2 / 16

Probability = 1 / 8

Hence,

The required probability that a student has a cat given that they do not have a dog = 1/8 or 0.125.

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Answer: 16

Step-by-step explanation:

u=5

v=3

u² - v²

5² - 3²
——————————

5² = 5 • 5 = 25

3² = 3 • 3 = 9

——————————

25 - 9 = 16

With any of the six correct integers, there is a 0.35 percent probability of not winning the lottery.

The area of mathematics known as probability deals with numerical representations of the likelihood that an event will occur or that a statement is true.

An event's probability is a number between 0 and 1, where, roughly speaking, 0 denotes the event's impossibility and 1 denotes certainty.

So, considering that n is 40:

n = 40 as a positive integer

Probability of not choosing any of the six ideal numbers in a lottery:

C(34 , 6)/C(40 , 6)

The likelihood of choosing none of the six correct integers in a lottery:

1344904/3838380

Probability of not winning a lottery with any of the six correct integers:

0.35

Therefore, with any of the six correct integers, there is a 0.35 percent probability of not winning the lottery.

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Correct question:
Find the probability of selecting none of the correct six integers in a lottery, where the order in which these integers are selected does not matter, from the positive integers not exceeding the given integers. (Enter the value of probability in decimals. Round the answer to two decimal places.)

a) 0.40

b) 0.48

c) 0.56

d) 0.64

e) 0.35

Answer:

C. 0.625

Step-by-step explanation:

5 divided by 8 is .625

A.

       .625      

8   5.000

   - 48

        20

       - 16

           40

         - 40

             0

B.

or you can multiply by 8 the answers to see if you get 5

A. 0.375 * 8 = 3

B. 0.40 * 8 = 3.2

C. 0.625 * 8 = 5

D. 0.875 * 8 = 8

C.

if you dont have to you could estimate using the first number after the decimal to see if you get 5

A. 0.375

first number after the decimal is 3

3 * 8 = 24 ≈ 2.4 ≈ 3

B. 0.40

first number after the decimal is 4

4 * 8 = 32 ≈ 3.2 ≈ 3

C. 0.625

first number after the decimal is 6

6 * 8 = 48 ≈ 4.8 ≈ 5

D. 0.875 * 8 = 8

To view the sketched cubic function and label the zeros using the factors check the attached image and the rewrite the function in general form is

2[tex]x^{3}[/tex] - 6[tex]x^{2}[/tex] -26x + 30.

Given that :

f(x) = (x + 3)(-x + 5)(2 - 2x)

To find  : zeroes of f(x) , sub f(x) = 0

(x + 3)(-x + 5)(2 - 2x) = 0

          x + 3 = 0

                x = -3

        - x + 5 = 0

                x = 5

        2 - 2x = 0

               x = 1

      The zeroes are -3 , 1 , 5  

Rewrite the function in general form  

     f(x) =  (x + 3)(-x + 5)(2 - 2x)

           = (- [tex]x^{2}[/tex] + 2x + 15 )(2 - 2x)

     f(x) = 2[tex]x^{3}[/tex] - 6[tex]x^{2}[/tex] - 26x + 30

Therefore,  f(x) = 2[tex]x^{3}[/tex] - 6[tex]x^{2}[/tex] - 26x + 30 is a general form.

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hence proved If number is 2t + 1 where t belongs to integer, then it is odd integer.

Odd number integers = 2k + 1, where k is integer

Even number integer = 2k

Odd integer + even integer

 = 2k + 1 + 2k

= 4k + 1

 = 2(2k) + 1

Let 2k = t, where t is integer

  = 2t + 1

 = Odd integer by definition

If number is 2t + 1 where t belongs to integer, then it is odd integer.

Hence proved.

The question is incomplete. The complete question is :

Each statement below involves odd and even integers. An odd integer is an integer that can be expressed as 2k+1, where k is an integer. An even integer is an integer that can be expressed as 2k, where k is an integer. Prove each of the following statements using a direct proof. (a) The sum of an odd and an even integer is odd

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