the time spent waiting in the line is approximately normally distributed. the mean waiting time is 7 minutes and the variance of the waiting time is 4 . find the probability that a person will wait for less than 11 minutes. round your answer to four decimal places.

Answers

Answer 1
We know that the waiting time is approximately normally distributed with a mean of 7 minutes and a variance of 4. Therefore, the standard deviation is the square root of the variance, which is 2.

To find the probability that a person will wait for less than 11 minutes, we need to standardize the value using the standard deviation and mean.

z = (x - μ) / σ

where x is the waiting time we want to find the probability for, μ is the mean waiting time, and σ is the standard deviation.

Plugging in the values, we get:

z = (11 - 7) / 2
z = 2

Using a standard normal distribution table or calculator, we can find the probability that a z-score is less than 2. This probability is approximately 0.9772.

Therefore, the probability that a person will wait for less than 11 minutes is 0.9772 (rounded to four decimal places).

Related Questions

you place in a dark bag 24 marbles. 12 marbles are red, 5 marbles are blue and 7 marbles are yellow. you select 2 random marbles (one after the other without putting the first back in). what is the probability that the marbles have the same color?

Answers

The probability of selecting two marbles with the same color is approximately 0.27 or 27%.

To work out the likelihood that the two marbles drawn have similar variety, we can utilize the accompanying advances:

In the first place, we compute the likelihood of drawing a red marble on the principal pick: 12/24 = 1/2.

On the off chance that the main marble drawn is red, there will be 11 red marbles left clinched, out of a sum of 23 marbles. So the likelihood of drawing one more red marble on the subsequent pick is 11/23.

Likewise, in the event that the principal marble drawn is blue, there will be 4 blue marbles left clinched, out of a sum of 23 marbles. So the likelihood of drawing one more blue marble on the subsequent pick is 4/23.

Furthermore, on the off chance that the main marble drawn is yellow, there will be 6 yellow marbles left taken care of, out of a sum of 23 marbles. So the likelihood of drawing one more yellow marble on the subsequent pick is 6/23.

To get the complete likelihood of drawing two marbles of similar variety, we want to add the probabilities of every one of these cases:

(1/2) x (11/23) + (5/24) x (4/23) + (7/24) x (6/23) = 55/138 or roughly 0.398 or 39.8%.

In this way, the likelihood of drawing two marbles of a similar variety is roughly 39.8%.

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When adding or subtracting mixed numbers with like denominators, the numerators ___ , but the denominators ______ .


A. Stay the same

B. change

Answers

Answer:

Yo, when you adding or subtracting mixed numbers with the same denominators, the numerators stay chill, they don't change, bro.

But the denominators, they also stay the same, man. It's like keeping things consistent, ya feel me? So the answer is A, dude. Numerators stay put, denominators stay put. It's all good vibes, bro! ✌️

a number c increased by 3 is less than or equal to -18

Answers

This is my answer C+3= -18

when the underlying distribution of interval scores is violently skewed the appropriate correlational technique should be

Answers

The appropriate correlational technique when the underlying distribution of interval scores is violently skewed would be:

b. Spearman's rank correlation coefficient

When the distribution of interval scores is violently skewed, meaning that the data is not normally distributed and may have extreme values or significant departures from normality, Pearson's correlation coefficient (option a) may not be appropriate as it assumes a linear relationship between variables and normality of data.

Instead, Spearman's rank correlation coefficient (option b) is a more appropriate choice. Spearman's rank correlation coefficient is a non-parametric method that does not assume normality of data and is based on the ranks of data rather than the actual values. It measures the strength and direction of monotonic association between variables, making it suitable for data that may not meet the assumptions of Pearson's correlation coefficient.

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Complete Question

When the underlying distribution of interval scores is violently skewed, the appropriate correlational technique should be:

a. Pearson's correlation coefficient

b. Spearman's rank correlation coefficient

c. Kendall's tau

d. Point-biserial correlation coefficient

e. Phi coefficient

The appropriate correlational technique when the underlying distribution of interval scores is violently skewed depends on the type of data and the research question, and may include non-parametric tests such as Spearman's rank correlation coefficient.

When the underlying distribution of interval scores is violently skewed, the appropriate correlational technique depends on the type of data and the research question.

If the data is bivariate (two variables) and both variables are continuous, then the appropriate correlational technique would be Spearman's rank correlation coefficient, which is a non-parametric test that measures the strength and direction of the association between two variables.

Spearman's rank correlation coefficient is used when the data is not normally distributed or when the relationship between the variables is not linear.

On the other hand, if one or both of the variables are dichotomous or categorical, then a different correlational technique may be more appropriate.

For example, if one variable is dichotomous and the other is continuous, a point-biserial correlation coefficient may be used.

If both variables are categorical, a chi-square test of independence or Cramer's V may be used.

It is important to note that the appropriateness of a particular correlational technique depends on the specific characteristics of the data and research question.

Therefore, it is recommended to consult with a statistician or data analyst to determine the most appropriate technique for a particular study.

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Find the three trigonometric ratios . If needed, reduce fractions.

Answers

The trigonometric ratios with respect to the angle C are:

sin(C) = 15/17, cos(C) = 8/17, tan(C) = 15/8, cosec(C) = 17/15, sec(C) = 17/8, cot(C) = 8/15

What is trigonometric ratios?

Trigonometric ratios are ratios of the sides of a right triangle used to calculate angles and side lengths.

The three main ratios are sine, cosine, and tangent, which are defined as the ratios of the opposite, adjacent, and hypotenuse sides.

Using the right triangle ABC, we can find the trigonometric ratios with respect to angle C:

sin(C) = opposite/hypotenuse = AB/AC = 15/17

cos(C) = adjacent/hypotenuse = BC/AC = 8/17

tan(C) = opposite/adjacent = AB/BC = 15/8

cosec(C) = 1/sin(C) = AC/AB = 17/15

sec(C) = 1/cos(C) = AC/BC = 17/8

cot(C) = 1/tan(C) = BC/AB = 8/15

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your friend is bringing half of a crate of popsicles to the picnic. of you put what is left in the crate evenly into 6 ice buckets, what fraction of the crate will go into each of ice bucket​

Answers

Answer:

Yo, my dude is bringing half a crate of popsicles to the picnic. When we split it up into 6 ice buckets, each bucket gonna get a fair share, man. It's gonna be like dividing the remaining popsicles evenly among the buckets, so each bucket gonna have like a fraction of the crate, you feel me? It's gonna be all chill, bro! Each ice bucket gonna get like 1/6 of the crate, straight up! Easy peasy, lemon squeezy!

the anova procedure is a statistical approach for determining whether the means of . a. more than two samples are equal b. two or more populations are equal c. two samples are equal d. two or more samples are equal

Answers

The means of two or more populations being equal is determined by a statistical approach for the ANOVA procedure. Option B is correct.

The ANOVA (Analysis of Variance) procedure is a statistical method used to determine whether there is a significant difference between the means of two or more groups. To statistically test the equality of means ANOVA uses F-tests.

The repeated-measures ANOVA is a two-stage process that is described as an analysis of dependencies. This test is used to prove an assumed cause-effect relationship between variables. The conditions that must be met for the results of an ANOVA are Independence, Random Sampling, Large Sample Size, and Normality.

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Samuel rotated PLUTO 90° clockwise about the origin to generate P'L'U'T'O'.
with vertices at P (2,-3), L'(-2,-5), U'(-6,-1), T'(-2,3), and O'(1,1). What
are the coprdinates for PLUTO?​

Answers

The coordinates for PLUTO are P(3,2), L(5, -2), U(1, -6), T-3, -2) and O(-1, 1)

When a figure is rotated 90 degrees clockwise about the origin, its new coordinates are found by switching the x and y values of each point and then negating the new x value. This means that if a point had coordinates (x, y) in the original figure, its new coordinates in the rotated figure would be (-y, x).

Using this information, we can find the coordinates of each vertex of PLUTO by working backwards from the coordinates of the vertices of P'L'U'T'O'. For example, the coordinates of P can be found by negating the y-coordinate of P' and switching the x and y values. Applying this formula to P'(2,-3) gives us P(3,2).

Similarly, the coordinates of L can be found by negating the y-coordinate of L' and switching the x and y values. Applying this formula to L'(-2,-5) gives us L(5,-2).

Then for the other coordinates are calculated based on then we get the following,

U'(-6,-1) is U(1, -6)

T'(-2,3) is (-3, -2)

and O'(1,1) is (-1, 1).

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Leo subscribes to a monthly app service that charges him $6 for one month, and each app he purchases costs $0. 90. Lara subscribes to a service that charges $1. 50 per app with no additional monthly fee. After how many apps will they have the same monthly bill?

Answers

Iam do not understand what do you mean 1335690964225753897426908224 1335690964225753897426908224 88 9 109 250 10 10 XL 220 10 10 30 250 30 30 30 400


Hi can someone help me with finding out the equation for this word problem

Answers

The equation of the word problem is x-4n.

What is word problem?

A word problem is a math problem written out as a short story or scenario. This mathematical statement are interpreted into mathematical equation or expression.

Representing the total number of sheep in the flock by x and representing the number of weeks by n. Therefore the remaining sheep in the flock for the number of weeks will be expressed as

x - 4n.

Therefore the equation for the word problem is x - 4n.

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Jody's team scored 26, 25, 34, 28, and 32 points at the last five basketball games.

What does the mean number of points Jody's team scored represent?

Responses:

A mean of 29 means that the data values are relatively close together and Jody's team scored around 29 points each game.

A mean of 29 points means that the data is very spread out.

A mean of 29 points means that Jody's team scored exactly 29 points in each of the last 5 games.

Answers

Answer: A

Step-by-step explanation:

There are four security stations placed around a
stadium, labeled A through D in the figure. Each
station will be occupied by a guard chosen
randomly from a group of 6 volunteers: Aaron,
Blake, Chelsea, Daria, Eddie, and Francis. What is
the probability that Daria and Blake will be chosen
to be the security guards?

A) 1/15
B) 2/15
C) 4/15
D) 2/5

Answers

The probability of Daria and Blake being chosen together is 1/15. So correct option is A.

Describe Probability?

Probability is a measure of the likelihood or chance of an event occurring. It is a number between 0 and 1, with 0 indicating that the event is impossible and 1 indicating that the event is certain. Probabilities can be expressed as fractions, decimals, or percentages.

The concept of probability is used in a wide range of fields, including mathematics, statistics, science, engineering, finance, and economics. It is used to make predictions and decisions based on uncertain outcomes.

The probability of an event can be calculated by dividing the number of ways the event can occur by the total number of possible outcomes. This is known as the classical definition of probability. Other methods of calculating probability include empirical probability, which is based on observations or experiments, and subjective probability, which is based on personal judgment or opinion.

The total number of ways to choose 2 guards from 6 volunteers is given by the combination formula:

C(6,2) = 6! / (2! * 4!) = 15

Out of these 15 possible combinations, there is only one way to choose Daria and Blake together. Therefore, the probability of Daria and Blake being chosen together is:

1/15

So, the answer is (A) 1/15.

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A food distributor ships, eight cases of regular soda for every three cases of diet soda Mrs. Locket asks students to find a number that could represent the number of cases of diet soda The food distributor could ship. which students completed the task correctly.

Barrie with 27 marina with 16 Jordan with 36 Hai with 20 Valerie with 11 in Coleman with 51

Answers

only Marina with 16 cases of diet soda is a valid answer, as it results in a whole number of cases. Therefore, Marina completed the task correctly

A natural number is what?

In mathematics, natural numbers are employed for count and ranking. Ordinal numbers are used for organisation, while cardinal numbers are used for counting.

To count or sort them, use the zeros  and on and on. An integer sum is one that is made up of only integers. not utilising fractions or decimals. Decimals or fractions are not what integers are.

Although there is only one type of integer Not all integers too are integers or unnatural numbers (just as all of them are natural numbers). For instance, the number -5 is neither a natural number nor an integer, but both.

Based on the given information, we know that the ratio of regular soda to diet soda being shipped is 8:3. We can use this ratio to find the number of cases of diet soda for each student who completed the task correctly.

Let's calculate the number of cases of diet soda for each student:

Barrie: 27

Number of cases of diet soda = 27 * 3/8 = 10.125 (rounded to the nearest whole number) - This is not a valid answer as the number of cases of diet soda should be a whole number.

Marina: 16

Number of cases of diet soda = 16 * 3/8 = 6

Jordan: 36

Number of cases of diet soda = 36 * 3/8 = 13.5 (rounded to the nearest whole number) - This is not a valid answer as the number of cases of diet soda should be a whole number.

Hai: 20

Number of cases of diet soda = 20 * 3/8 = 7.5 (rounded to the nearest whole number) - This is not a valid answer as the number of cases of diet soda should be a whole number.

Valerie: 11

Number of cases of diet soda = 11 * 3/8 = 4.125 (rounded to the nearest whole number) - This is not a valid answer as the number of cases of diet soda should be a whole number.

Coleman: 51

Number of cases of diet soda = 51 * 3/8 = 19.125 (rounded to the nearest whole number) - This is not a valid answer as the number of cases of diet soda should be a whole number.

Based on the calculations, only Marina with 16 cases of diet soda is a valid answer, as it results in a whole number of cases. Therefore, Marina completed the task correctly.

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16. pen problems a. a rectangular pen is built with one side against a barn. two hundred meters of fencing are used for the other three sides of the pen. what dimensions maximize the area of the pen? b. a rancher plans to make four identical and adjacent rectan- gular pens against a barn, each with an area of 100 m2 (see figure). what are the dimensions of each pen that minimize the amount of fence that must be used?

Answers

a. The dimensions that maximize the area of the pen are 33 meters by 100 meters.

b. The dimensions of each rectangular pen that minimize the amount of fence used are 10sqrt(2) meters by 10sqrt(2) meters.

a. To maximize the area of the rectangular pen, we need to find the dimensions that use up all 200 meters of fencing, except for the side that is against the barn. Let the length of the pen be x and the width be y. Then we have:

Perimeter of the pen = 2x + y = 200 - x (since one side is against the barn)

Simplifying this equation, we get:

3x + y = 200

Area of the pen = xy

Now we can express y in terms of x using the equation above:

y = 200 - 3x

Substituting this into the expression for area, we get:

A(x) = x(200 - 3x) = 200x - 3x^2

To maximize the area, we need to find the value of x that makes A(x) as large as possible. We can do this by taking the derivative of A(x) with respect to x and setting it equal to 0:

A'(x) = 200 - 6x

200 - 6x = 0

x = 33.33

Since we can't have a fractional length, we choose x = 33 meters (rounded to the nearest meter). Then y = 200 - 3x = 100 meters.

b. Let the dimensions of each rectangular pen be x and y. Then we have:

Area of each pen = xy = 100

Perimeter of each pen = 2x + 2y

We want to minimize the amount of fence used, which is equal to the total perimeter of all four pens. So, we need to find the dimensions that minimize the total perimeter subject to the constraint that the area of each pen is 100. We can use Lagrange multipliers to solve this problem:

L(x, y, λ) = 2x + 2y + λ(xy - 100)

Taking the partial derivatives with respect to x, y, and λ, we get:

∂L/∂x = 2 + λy = 0

∂L/∂y = 2 + λx = 0

∂L/∂λ = xy - 100 = 0

Solving these equations simultaneously, we get:

x = y = sqrt(200/λ)

xy = 100

Substituting the first equation into the second equation, we get:

sqrt(200/λ)^2 = 100

λ = 2

Substituting λ = 2 back into the first equation, we get:

x = y = sqrt(200/λ) = 10sqrt(2)

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Can someone please help me asap? It’s due tomorrow.

Answers

The correct option is the last one, they only surveyed their subscribers-.

Why is the title misleading?

The title is "most popular equipment among all campers", notice the word "all". The title claims that it is representing the whole population of campers.

But the sample does not represent all campers, because the sample is only the subscribers of that magazine, so we have a biased sample.

Then the correct option is the last one, they only surveyed their subscribers.

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in a certain health center there are 3 doctors, 8 nurses and 2 physicians. in how many ways one can form a group of 5 members consisting of 1 doctor, 3 nurse and 1 physician.

Answers

The number of ways to form a group of 5 members consisting of 1 doctor, 3 nurses, and 1 physician can be calculated as follows:

Number of ways to select 1 doctor from 3 = 3C1 = 3

Number of ways to select 3 nurses from 8 = 8C3 = (8*7*6)/(3*2*1) = 56

Number of ways to select 1 physician from 2 = 2C1 = 2

Total number of ways to form the group = number of ways to select 1 doctor * number of ways to select 3 nurses * number of ways to select 1 physician
= 3 * 56 * 2
= 336

Therefore, there are 336 ways to form a group of 5 members consisting of 1 doctor, 3 nurses, and 1 physician from a health center that has 3 doctors, 8 nurses, and 2 physicians.

consider the following data set when answering questions 9-12. in a study of jury behavior, participants were provided details about a trial in which the defendant was obviously guilty. although group 2 was told the same details as group 1, they were also told that some evidence had been withheld from the jury by the judge. later the participants were asked to recommend a jail sentence in years. the length of sentence suggested by each participant is presented below. group 1 scores: 4 4 3 2 5 1 1 4 group 2 scores: 3 7 8 5 4 7 6 8 what is the null hypothesis for this test? the groups will differ in their suggested sentences the second group will have a longer mean sentence than group one the second group will have a shorter mean sentence than group one the 2 groups will not differ in terms of their suggested sentences

Answers

The null hypothesis for this test is that the 2 groups will not differ in terms of their suggested sentences.

The null hypothesis is a statement that there is no difference between the two populations or variables being tested.

It can be thought of as the "default" position, which assumes that any observed difference is due to chance.

The null hypothesis is usually written in a way that it can be tested and rejected or not rejected through statistical analysis.

The null hypothesis for this test is that the two groups will not differ in terms of their suggested sentences.

This means that any difference between the groups in their suggested sentences is due to chance and not a difference in the population or variables being tested.

This hypothesis can be tested and rejected or not rejected through statistical analysis.

If the two groups do differ in their suggested sentences then the null hypothesis will be rejected and it will be concluded that the difference is not due to chance but rather due to a difference in the population or variables being tested.

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A store is offering a 30% discount on shirts. A shirt at the store has an original cost of $25. What is the cost of the shirt, in dollars, after the discount?

Answers

The cost of the shirt, in dollars, after the 30% discount is $17.50.

What is discount?

A discount is a reduction in the price of a product or service that is offered by a seller to a buyer. Discounts can be offered for a variety of reasons, such as to attract customers, increase sales, or clear out inventory. Discounts can be expressed as a percentage or a fixed amount, and they can be applied at the time of purchase or deducted from an invoice or bill. Discounts are often used in sales promotions, marketing campaigns, and loyalty programs to incentivize customers to buy or use a product or service.

If a store is offering a 30% discount on shirts that cost $25 originally, then the discount amount is:

30% of $25 = 0.30 x $25 = $7.50

The discount amount is $7.50, so the new price of the shirt after the discount is:

$25 - $7.50 = $17.50

Therefore, the cost of the shirt, in dollars, after the 30% discount is $17.50.

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In triangle ∆ABC, m<A = 33°, m<C = 58°, and AB = 25 in. What is AC to the nearest tenth of an inch?

1. 16.1 in.
2. 38.9 in
3. 42 in.
4. 12 in.​​​

Answers

The length of AC using the laws of sines is 29.5 inches

Calculating the length of AC

We can use the law of sines to solve this problem.

The law of sines states that in any triangle ∆ABC:

a/sin(A) = b/sin(B) = c/sin(C)

where a, b, and c are the lengths of the sides opposite to the angles A, B, and C, respectively.

In this case, we know that m<A = 33°, m<C = 58°, and AB = 25 in.

We need to find AC, which is opposite to angle A.

Let's use the law of sines to solve for AC:

AC/sin(B) = AB/sin(C)

Where

B = 180 - 33 - 58

B = 89

So, we have

AC/sin(89°) = 25/sin(58°)

This gives

AC = 29.5 in. (rounded to the nearest tenth)

Therefore, the answer is 29.5 inches

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Select all of the expressions equivalent to (0.5p + 7) + (0.3p-6).

1 + 0.8p
0 -6.5p+7.3
0 7.5p-5.7
0 0.8p+1
7.3-6.5p

Answers

The expression 0.8p+1 and 1 + 0.8p are equivalent to (0.5p + 7) + (0.3p-6).

Selecting all of the equivalent expressions

We can simplify the given expression by combining like terms:

(0.5p + 7) + (0.3p-6) = 0.5p + 0.3p + 7 - 6

= 0.8p + 1

Therefore, 0.8p + 1 is equivalent to (0.5p + 7) + (0.3p-6).

Similarly, we can simplify the given expression in another way:

(0.5p + 7) + (0.3p-6) = 0.5p + 0.3p + 7 - 6

= 0.8p + 1

The other options (1 + 0.8p, 7.5p-5.7) are not equivalent to the given expression.

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A survey found that the ratio of students who play intruments to those who do not was 7/20 of the students do not play an instrument 440 surveyd how many students surveyd play an instument

Answers

The number of students surveyed who plays an instrument is 114 students.

The ratio of students who play instruments to those who do not is 7/20, which means that out of every 7+20=27 students, 7 of them play an instrument and 20 of them do not.

If we know that 440 students were surveyed, we can set up a proportion to find the number of students who play an instrument:

7/27 = x/440

To solve for x, we can cross-multiply:

7 * 440 = 27 * x

3080 = 27x

x = 114.07

Since we can't have a fraction of a student, we should round up to the nearest whole number, which means that approximately 114 students surveyed play an instrument.

Therefore, the required answer is 114.

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wants to know if there is a difference in the average annual household income between those who own their own homes and those who rent. she has measured household income on a ratio scale, based on the annual take-home pay of residents. what statistical test should she use to examine this difference?

Answers

Use an independent samples t-test to compare annual household income between homeowners and renters, considering within-group variability and determining statistical significance.

To look at the distinction in the normal yearly family pay between the people who own their own homes and the individuals who lease, a suitable factual test to utilize would be an autonomous examples t-test.

This test is utilized to think about the method for two autonomous gatherings, for this situation, the gathering of property holders and the gathering of tenants.

As the family pay is estimated on a proportion scale, the t-test can be utilized to decide whether there is a huge distinction in the method for the two gatherings, considering the changeability inside each gathering.

The consequences of the t-test will give a p-esteem, which can be utilized to decide the factual meaning of any distinctions tracked down between the two gatherings.

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HELP!! 10 POINTS
uhm yeah thats all I've got to say

Answers

The correct statement regarding the middle 50% of the data-set is given as follows:

C. The box, from 41 to 56.

What does a box-and-whisker plot shows?

A box and whisker plots shows these five features from a data-set, listed as follows:

The minimum non-outlier value.The 25th percentile, which is the median of the bottom 50%.The median, which splits the entire data-set into two halfs, the bottom 50% and the upper 50%.The 75th percentile, which is the median of the upper 50%.The maximum non-outlier value.

The box, from the 25th percentile of 41 to the 75th percentile of 56, shows the middle 50% of the data-set.

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At a candy store, gummy bears are $5.25 per pound and jelly beans are $3.90 per pound. David has 1 3/4 pounds of jelly beans in his basket. Write and solve an inequality to determine the maximum number of pounds of gummy bears David can buy if he has $15 to spend. (Weights are measured to the nearest hundredth of a pound.)

Answers

If David already has 7/4 pounds of jelly beans, then 1.55 pounds of gummy bears can he buy.

What is the unitary method?

The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.

To determine the remaining amount of money available left to buy gummy bears, we have to find the amount of money already spent on jelly beans.

Amount of money spent on jelly beans;

= 7/4 × 3.90

= 6.825

Amount of money left for gummy bears ;

= 15-6.825

= 8.175

Thus, Pounds of gummy bears bought = 8.175 ÷ 5.25

                                                    = 1.55 pounds

Hence, If David already has 7/4 pounds of jelly beans, then 1.55 pounds of gummy bears can he buy.

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A fair die will be rolled 12
times. What is the probability that 1
, 2
, or 3
is rolled at most 9
times? Round your answer to four decimal places

Answers

The probability of getting 1, 2, or 3 at the most 9 times after rolling a fair die 12 times is given by 0.9807.

Probability that 1, 2, or 3 is rolled at most 9 times,

Consider all the possible outcomes of rolling a fair die 12 times.

Count the number of outcomes where 1, 2, or 3 is rolled at most 9 times.

Use the complementary probability,

Probability that 1, 2, or 3 is rolled more than 9 times,

Then subtract that probability from 1 .

Let X be the number of times 1, 2, or 3 is rolled in 12 rolls.

Then X follows a binomial distribution with n=12 and p=1/2,

Since there are 3 favorable outcomes out of 6 possible outcomes on each roll.

The probability that 1, 2, or 3 is rolled more than 9 times can be calculated as follows,

P(X > 9) = P(X = 10) + P(X = 11) + P(X = 12)

= (¹²C₁₀) (1/2)^10 (1/2)^2 + (¹²C₁₁) (1/2)^11 (1/2)^1 + (¹²C₁₂) (1/2)^12 (1/2)^0

= 66/2^12 + 12/2^12 + 1/2^12

= 79/2^12

Probability that 1, 2, or 3 is rolled at most 9 times is,

P(X ≤ 9)

= 1 - P(X > 9)

= 1 - 79/2^12

= 4017/2^12

Rounding this to four decimal places gives,

P(X ≤ 9) ≈ 0.9807

Therefore, the probability that 1, 2, or 3 is rolled at most 9 times is approximately 0.9807.

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Please help me so i can finish my homework

Answers

Answer:

[tex]\frac{1}{4}[/tex]w + 3

Step-by-step explanation:

Helping in the name of Jesus.

8.G.B.7, 8.G.B.8
Which is the better definition of leg"

Answers

The better definition of leg include the following: D. either of the two sides that form the right angle.

What is a right angle?

In Mathematics, a right angle can be defined as a type of angle that is formed in a triangle by the intersection of two (2) straight lines at 90 degrees. This ultimately implies that, a right angled triangle has a measure of 90 degrees.

Generally speaking, the longest side (hypotenuse) of a triangle is equal to the sum of the square of two shorter sides (legs):

a² + b² = c²

Where:

a, b, and c represents the legs, side lengths or length of sides of a right angled triangle.

In conclusion, the legs in Mathematics simply refers to the opposite side and adjacent side of a right angled triangle.

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Is 20/√40 the same as 1/√2

Answers

Yes, 20/√40 is the same as 1/√2.

To see why, we can simplify 20/√40 as follows:

20/√40 = (20/2√10) = 10/√10

Now, we can simplify the denominator of 10/√10 by multiplying by √10/√10:

10/√10 = (10/√10) x (√10/√10) = 10√10/10 = √10

Therefore, 20/√40 simplifies to √10.

Similarly, we can simplify 1/√2 as:

1/√2 = (1/√2) x (√2/√2) = √2/2

Since √10 and √2/2 are not the same, we can conclude that 20/√40 is not the same as 1/√2.

Answer:

Step-by-step explanation:

[tex]\sqrt{40}[/tex] = [tex]\sqrt{4}[/tex] x [tex]\sqrt{10}[/tex] = [tex]2\sqrt{10[/tex]

[tex]\frac{20}{2\sqrt{10} }[/tex] = [tex]\frac{10}{\sqrt{10} }[/tex]

[tex]\frac{10}{\sqrt{10} } * \frac{\sqrt{10} }{\sqrt{10} } = \frac{10\sqrt{10} }{10} = \sqrt{10} }[/tex]

[tex]\frac{1}{\sqrt{2} } = \frac{1}{\sqrt{2} } * \frac{\sqrt{2} }{\sqrt{2} } = \frac{\sqrt{2} }{2}[/tex]

From the above since [tex]\frac{20}{\sqrt{40} }[/tex]   is not equal to  [tex]\frac{1}{\sqrt{2} }[/tex] it implies that they are not the same

The relationship between the mass m in kilograms of an organism and its metabolism P in Calories per
day can be represented by P = 73.3m³. Find the metabolism of an organism that has a mass of 16 kilograms.

Answers

Answer:

The relationship between the mass m in kilograms of an organism and its metabolism p in calories per day can be represented by p = 73.3m³ . To find the metabolism of an organism that has a mass of 16 kilograms, we can substitute m = 16 into the equation:

p = 73.3m³ p = 73.3(16)³ p = 73.3(4096) p = 299,648 calories per day

Therefore, an organism with a mass of 16 kilograms has a metabolism of 299,648 calories per day.

I hope that helps!

Step-by-step explanation:

An organism with a mass of 16 kilograms has a metabolism of 299,708.8 Calories per day according to the given relationship.

We can use the given formula to find the metabolism P of an organism with a mass of 16 kilograms:

P = 73.3m³

where m = 16 kg

Substituting the value of m:

P = 73.3(16)³

P = 73.3(4096)

P = 299,708.8 Calories per day.

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Charlie made the following table to record the height of each person in his family.

If Cheyenne and Hannah lay end to end, how far will they reach?

A. 9

B. 9, 1/2

C. 10

D. 8

Answers

Cccccccccccccccccccccccc
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