=Carly and Ramil are planning a treasure hunt. They decide to place a treasure at a point that is a distance of
7 units from the x-axis and 3 units from the y-axis. Ramil places a treasure at point R, and Carly places one
at point C. Who put the treasure in the right place? Explain how you
know.
8
765
5
4
32
1
O
C
12 3
R
4 5 6 7
8
Xx

Answers

Answer 1

The solution is: Garret placed the treasure at the right place.

Here, we have,

The Cartesian plane can be used to locate the position of any given point with a coordinate. It consists of two numbered lines perpendicular to each other and intersecting at point zero of the lines.

From the statements given, 5 units from x-axis is not the same as 5 units on x-axis. Also, 3 units from y-axis is not the same as 3 units on y-axis.

So, distance 5 units from x-axis implies that a point 5 units after the x-axis. And also, distance 3 units from y-axis means 3 units after the y-axis.

With these conditions of the coordinate of the treasure, Garrett placed the treasure at the right place.

Hence, The solution is: Garret placed the treasure at the right place.

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complete question:

Garrett and Jeffrey are planning a treasure hunt. They decide to place a treasure at a point that is a

distance of 5 units from the x-axis and 3 units from the y-axis. Jeffrey places a treasure at point J, and

Garrett places one at point G. Who put the treasure in the right place? Explain how you know.


Related Questions

chance of failure is independent of another's failure, what would the individual failure rate need to be so that our of 20 users only 20% failed

Answers

The individual failure rate needs to be approximately 3.33% for only 20% of 20 users to fail, assuming that the probability of failure is independent of another's failure.

If the chance of failure is independent of another's failure, it means that the probability of each individual failing is the same, and we can assume that the failures follow a binomial distribution.

Let p be the probability of an individual failing, and n be the number of trials (in this case, the number of users, n = 20).

The probability of exactly k failures out of n trials is given by the binomial probability formula:

[tex]P(k) = (n choose k) \times p^k \times (1-p)^{(n-k)[/tex]

where (n choose k) is the binomial coefficient, equal to n! / (k! × (n-k)!).

To find the individual failure rate needed for 20% of 20 users to fail, we need to solve for p such that P(4) = 0.2, where k = 4 is the number of failures we want to allow.

P(4) = (20 choose 4) [tex]\times p^4 \times (1-p)^{(20-4) }= 0.2[/tex]

Using a binomial calculator or software, we can solve for p and get:

p ≈ 0.0333 or 3.33%

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A company sells snack mix in a cylindrical can. The can has a 5-inch diameter and holds approximately Syntax error. of snack mix when it is completely full. How tall, to the nearest inch, is the can

Answers

The height of the can is approximately 8 inches when rounded to the nearest inch.

To find the height of the cylindrical can, we need to use the formula for the volume of a cylinder, which is:

V = πr²h

where V is the volume of the cylinder, r is the radius of the cylinder, and h is the height of the cylinder.

We are given the diameter of the can, which is 5 inches, so we can find the radius by dividing the diameter by 2:

r = 5/2 = 2.5 inches

We are also given the volume of the can, which is approximately 157 cubic inches. We can now substitute the values we have into the formula for the volume of a cylinder and solve for h:

157 = π(2.5)²h

Simplifying and solving for h:

157 = 19.63h

h ≈ 8 inches

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Complete question is:

A company sells snack mix in a cylindrical can. The can has a 5-inch diameter and holds approximately 157in³. of snack mix when it is completely full. How tall, to the nearest inch, is the can?

If the two variables are independent, what would you estimate is the probability of observing exactly 39 blue eyed blonde haired people in the group of this size?

Answers

This gives us an estimated probability of approximately 0.00006, or 0.006%.

Without knowing any further information about the distribution or characteristics of the population, it is impossible to provide an accurate estimate of the probability of observing exactly 39 blue eyed blonde haired people in a group of a certain size.

However, if we assume that the two variables (eye color and hair color) are independent and randomly distributed within the population, then we can use the binomial distribution to estimate the probability of observing exactly 39 people with both blue eyes and blonde hair in a group of a certain size.

The formula for the binomial distribution is:

[tex]P(X = k) = (n choose k) \times p^k \times (1-p)^{(n-k)[/tex]

Where:

P(X = k) is the probability of observing exactly k successes (in this case, 39 blue eyed blonde haired people)

n is the total number of trials (the size of the group)

k is the number of successes (39)

p is the probability of success (the probability of observing someone with blue eyes and blonde hair in the population)

Since we don't have any specific information about the population, we can't determine p directly. However, if we assume that the probability of someone having blue eyes is 0.2 and the probability of someone having blonde hair is 0.25 (which are rough estimates based on global averages), then we can estimate the probability of someone having both blue eyes and blonde hair as:

p = 0.2 × 0.25 = 0.05

Assuming a group size of 1000 people, we can use the binomial distribution to estimate the probability of observing exactly 39 blue eyed blonde haired people as:

[tex]P(X = 39) = (1000 choose 39) \times 0.05^{39} \times (1-0.05)^{(1000-39)}[/tex]

This gives us an estimated probability of approximately 0.00006, or 0.006%. However, it's important to note that this is just an estimate based on certain assumptions, and the true probability could be higher or lower depending on the actual characteristics of the population.

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he probability level required for statistical significance before utilizing inferential statistics. This level is referred to as the ________ of the test.

Answers

The "significance level" of the test is the probability level necessary for statistical significance prior to using inferential statistics.

Inferential statistics is a branch of statistics that involves making inferences about a population based on a sample. One of the key concepts in inferential statistics is the significance level, which is the probability level below which the results of a statistical test are considered statistically significant.

The significance level, also known as alpha (α), is typically set at 0.05 or 0.01, although other values may be used depending on the specific research question and context. The significance level represents the probability of rejecting the null hypothesis when it is true, which is also known as a Type I error. In other words, it represents the likelihood of concluding that there is a significant effect or difference in the population when there really isn't one.

When conducting a statistical test, researchers calculate a p-value, which represents the probability of obtaining the observed results or more extreme results under the null hypothesis. If the p-value is less than or equal to the significance level, then the results are considered statistically significant, and the null hypothesis is rejected in favor of the alternative hypothesis.

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What type of relationship does the data in the above scatterplot?

Answers

There is no relationship between the variables shown by the scatterplot.

Types of relationships of a scatter plot

A scatter plot is a form of graph that demonstrates the relationships between two variables. On the graph, each data point is displayed as a point, and the two variables are shown as lines on the x- and y-axes.

When there is no association between the two variables, the data points are scattered randomly around the graph.  The fact that there is a random scatter of the points shows that there is no relationship between them.

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The probability distribution for the number of automobiles lined up at a Lakeside Olds dealer at opening time (7:30 a.m.) for service is:

Answers

To provide you with an answer, let's consider the terms "probability distribution," "number of automobiles," and "Lakeside Olds dealer."

A probability distribution is a mathematical function that describes the likelihood of different possible outcomes in an experiment.

In this case, the experiment is observing the number of automobiles lined up at a Lakeside Old dealer at opening time (7:30 a.m.) for service.
To create the probability distribution for this scenario, we would first need to collect data on the number of automobiles lined up at the dealer at opening time over a certain period. Let's assume we have collected this data:
Number of automobiles:

Probability
0: 0.1
1: 0.2
2: 0.3
3: 0.2
4: 0.1
5: 0.1
This table represents the probability distribution for the number of automobiles lined up at a Lakeside Olds dealer at opening time for service.

The probabilities sum up to 1 (100%) as they should in any probability distribution.
For example, based on this distribution, there is a 10% chance that there will be no automobiles in line, a 20% chance that there will be 1 automobile, a 30% chance that there will be 2 automobiles, and so on.
This probability distribution helps the Lakeside Olds dealer understand and predict the number of automobiles they can expect at opening time, which can be useful for planning and resource allocation.

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The grade point averages (GPAs) of a large population of college students are approximately normally distributed with mean 2.8 and standard deviation 0.6. What percent of students have a gpa above 3.35

Answers

Approximately 17.88% of students in this population have a GPA above 3.35.

The grade point averages (GPAs) of college students in this large population follow a normal distribution with a mean of 2.8 and a standard deviation of 0.6. To find the percentage of students with a GPA above 3.35, we will use the z-score formula and standard normal distribution table.
The z-score formula is given by:
z = (X - μ) / σ
where X is the GPA we want to find the percentage for (3.35), μ is the mean (2.8), and σ is the standard deviation (0.6).
Calculating the z-score:
z = (3.35 - 2.8) / 0.6
z ≈ 0.92
Now, we will use the standard normal distribution table (also known as the z-table) to find the area to the left of this z-score (which represents the percentage of students with a GPA of 3.35 or lower). For a z-score of 0.92, the table gives us an area of approximately 0.8212, or 82.12%.
Since we want the percentage of students with a GPA above 3.35, we subtract this value from 100%:
100% - 82.12% ≈ 17.88%
Therefore, approximately 17.88% of students in this population have a GPA above 3.35.

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Suppose that you are taking a multiple choice test with 20 questions and each question has 4 answers and you guess randomly for each question. What is the probability that you get at least 5 questions correct

Answers

Thus, the probability of getting at least 5 questions correct by guessing randomly on a 20-question multiple-choice test with 4 possible answers for each question is approximately 0.074 or 7.4%.


To calculate the probability of getting at least 5 questions correct, we need to use the binomial distribution formula. This formula calculates the probability of getting a specific number of successes in a fixed number of trials, given a specific probability of success.

The formula for the probability of getting at least 5 successes in 20 trials with a probability of success of 1/4 is:

P(X ≥ 5) = 1 - P(X < 5)

where X is the number of correct answers.

Using the binomial distribution formula, we can calculate the probability of getting less than 5 correct answers as:

P(X < 5) = ΣP(X = k) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4)

= (0.75)^20 + 20(0.25)(0.75)^19 + (20*19/2)(0.25)^2(0.75)^18 + (20*19*18/6)(0.25)^3(0.75)^17 + (20*19*18*17/24)(0.25)^4(0.75)^16

= 0.926

Therefore, the probability of getting at least 5 questions correct is:

P(X ≥ 5) = 1 - P(X < 5)

= 1 - 0.926

= 0.074

So the probability of getting at least 5 questions correct by guessing randomly on a 20-question multiple-choice test with 4 possible answers for each question is approximately 0.074 or 7.4%.

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Solve this problem and I will give u brainlst.

Answers

The angle of depression from plane to the building for the given situation of taking photographs is equal to 30.027°.

Height for the best photograph = 403ft

Distance from the top of the building = 810 ft

As the given figure represents it is right angled triangle.

Horizontal vision from top of the building to the base are parallel.

Angle of depression and angle of elevation represents alternate angles

This implies,

Measure of angle of depression = Measure of angle of elevation

Let us consider angle of elevation be α .

In right angled triangle,

sin α = ( height of the building ) / (distance from the building)

Substitute the values we have,

⇒ sin α =  403/ 810

⇒ α =  sin⁻¹ ( 0.4975 )

⇒ α =  30.027°

Angle of depression = angle of elevation

⇒  Angle of depression = 30.027°      

Therefore, the angle of depression from the plane to the building is equal to 30.027°.

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What is the x-intercept for the equation 5x-4y=-4?

Answers

Step-by-step explanation:

x-axis intercept occurs when y = 0  ( obviously)

5x  - 4(0) = - 4

5x = - 4

x = - 4/5

Because quasi-experimental designs do not use randomization to assign subjects to treatment and comparison groups, it is more difficult to establish:

Answers

It is more difficult to establish nonspuriousness in quasi-experiment designs, where do not use randomization to assign subjects to treatment and comparison groups. So, option(c) is right.

The prefix quasi means "resembling". Thus, quasi-experimental research is a type of research which resembles to experimental research but it is not a true experimental research. These designs are similar to true experiments but lack random assignment to experimental and control groups. A true experiment, a quasi-experimental design, aims to establish a cause-and-effect relationship between an independent and a dependent variable. Aim of these experiments is to evaluate interventions but without use of randomization. Subjects are assigned to groups based on non-random criteria. Since the independent variable is measured, not manipulated, they are best thought of as correlational research. Thus, the correct answer is to determine a relationship between two variables that is not caused by variation in a third variable, i.e, Nonspuriousness.

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Complete question :

Because quasi-experimental designs do not use randomization to assign subjects to treatment and comparison groups, it is more difficult to establish:

a. Association

b. Time order

c. Nonspuriousness

d. Causal mechanism

e. Context

Suppose that of all customers in your store who buy cameras, 60% purchase a case, 40% purchase a tripod, and 30% purchase both a case and a tripod. Given a customer has purchased a camera and case, what is the probability that (s)he also purchased a tripod

Answers

For all customers in my store who buy cameras case and tripod, the conditional probability that he buying a tripod when case is bought is equals to 0.50.

A conditional probability is the probability of a certain event happening when another event is happening. Let us consider the events A and B. The conditional probability of occurrence of A when B already occurred, using formula, [tex] P(A|B )= \frac{ P( A and B)}{P(B)}[/tex]. Now, there are presence of data for all customers in store who buy cameras. Let's consider two events

C : customers who buy a camara case

T : customers who buy a tripod

The probability that customer purchase a camera and case, P(C) = 60% = 0.60

The probability that customer purchase a tripod, P(T) = 40% = 0.40

The probability that customer purchase a case and tripod , P( C = 30% = 0.30

Probability of people who bought only a case and not a tripod, P ( only C) = (60 - 30) = 30%

Percentage of people who bought only a tripod and not a case, P( only T) = (40 - 30) = 10%

Using the conditional probability formula,

Probability of buying tripod when a case is bought [tex]= P(T | C) = \frac{ P(T \cap C) }{ P(C) } [/tex]

[tex]= \frac{ 0.3}{0.6}[/tex]

= 0.50

Hence, required probability is 0.50.

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How many 4-digit campus telephone numbers (4-digit decimal sequences) are there in which the digit 6 appears at most twice (maybe not at all)

Answers

The total number of 4-digit campus telephone numbers in which the digit 6 appears at most twice is 7533.

There are two cases to consider:

Case 1: No 6's in the number

In this case, we can choose any digit from 0 to 9 for each of the 4 digits of the telephone number, except 6. Therefore, there are 9 options for each digit, and so the total number of 4-digit telephone numbers with no 6's is:

9 × 9 × 9 × 9 = 6561

Case 2: One or two 6's in the number

In this case, we can choose the positions for the 6's in ${4 \choose 1} + {4 \choose 2} = 6 + 6 = 12$ ways (either one 6 or two 6's), and then fill the remaining positions with any of the 9 digits (not including 6). Therefore, the total number of 4-digit telephone numbers with one or two 6's is:

12 × 9 × 9 = 972

Therefore, the total number of 4-digit campus telephone numbers in which the digit 6 appears at most twice is:

6561 + 972 = 7533

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solve the equation k^2-3k=10 by using the zero product property.
A.1 and 10
B.-2 and 7
C.3 and 5
D.-3 and 7

(Step by step please)

Answers

The solutions of the equation k² - 3k = 10 are k = 5 and k = -2.

We have,

To solve the equation k² - 3k = 10 using the zero product property, we first rearrange the terms so that one side of the equation is zero:

k² - 3k - 10 = 0

k² - (5 - 2)k - 10 = 0

k² - 5k + 2k - 10 = 0

k(k - 5) + 2(k - 5) = 0

(k - 5)(k + 2) = 0

According to the zero product property,

If the product of two factors is zero, then at least one of the factors must be zero.

So we set each factor equal to zero and solve for k:

k - 5 = 0 or k + 2 = 0

k = 5 or k = -2

Therefore,

The solutions of the equation k² - 3k = 10 are k = 5 and k = -2.

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A rectangular pyramid has a base length of 20 in., base width of 10 in., and an overall height of 25 in. What is the lateral surface area of the pyramid?\
1. 1000 in²
2. 950 in²
3. 750 in²
4. 500 in²

Answers

Answer: i got 779.16?

Step-by-step explanation:

sorry..

Answer:

ITS C

Step-by-step explanation:

20+10=30

30x25=750!

Let $n$ be a positive integer. Let $r$ be the remainder when $n^2$ is divided by $n 4.$ How many different values can $r$ take on

Answers

There are n different values that the remainder r can take on when [tex]n^2[/tex] is divided by n 4.

We can use the Remainder Theorem to solve this problem. The Remainder Theorem states that when a polynomial f(x) is divided by (x-a), the remainder is f(a).

Using this theorem, we can see that [tex]n^2[/tex] divided by n 4 leaves a remainder of [tex]n^2 - kn 4[/tex], where k is some integer. We want to find how many different values r can take on, which is the same as finding how many different values [tex]$n^2 - kn 4$[/tex] can take on.

Let's rewrite [tex]n^2 - kn 4 as n(n - k 4)[/tex]. This expression tells us that n and n - k 4 have the same remainder when divided by n 4. Therefore, n - k 4 can only take on n different values, namely [tex]0, n, 2n, \ldots, (n-1)n.[/tex]

For each of these n values, we can find a corresponding value of k that satisfies[tex]$n^2 - kn 4 \equiv r \pmod{n 4}$[/tex], namely [tex]k = (n^2 - r)/(n 4).[/tex] Therefore, there are exactly n different values that r can take on.

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A Type I error is committed if we make: a. a correct decision when the null hypothesis is true. b. an incorrect decision when the null hypothesis is false. c. a correct decision when the null hypothesis is false. d. an incorrect decision when the null hypothesis is true.

Answers

A Type I error is committed if we make an incorrect decision when the null hypothesis is true. The answer is d.

A Type I error is a statistical term used in hypothesis testing, and it occurs when a null hypothesis is rejected when it is actually true. In other words, it's the error of concluding that there is a significant difference between two groups when in fact there is no difference.

This error is denoted by the symbol alpha (α) and is often set at 0.05 or 0.01. The probability of committing a Type I error decreases as the significance level is lowered. However, this also increases the risk of committing a Type II error, which is the error of failing to reject a null hypothesis when it is actually false.

In statistical hypothesis testing, it's important to strike a balance between these two errors by selecting an appropriate level of significance that minimizes the likelihood of both Type I and Type II errors. Hence, d. is the correct answer.

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How can you tell from the prime factorization of the of two numbers if their LCM is the product of the two numbers

Answers

To determine if the LCM of two numbers is the product of the two numbers using their prime factorization, you need to check if the numbers are coprime.

Coprime numbers have no common prime factors except for 1. If the numbers are coprime, their LCM will be equal to the product of the two numbers.

To tell if the LCM of two numbers is the product of the two numbers, you need to compare the prime factorization of the two numbers. If the prime factors of both numbers are unique (meaning they do not share any common factors), then the LCM will be the product of the two numbers. However, if the two numbers share some common prime factors, then the LCM will have to include those factors at their highest power. So, to find the LCM of the two numbers, you need to take the highest power of each prime factor that appears in either number and multiply them together. If the product of these highest powers matches the product of the two numbers, then the LCM is equal to the product of the two numbers.

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Calculate the radius. Express your answer to two decimal places and include appropriate units. MÅ . R= Value Units Submit Request Answer Part D Calculate the circular curve length. Express your answer to two decimal places and include appropriate units. HÅ 0 ? ?

Answers

The result to two decimal places and include the appropriate units. Curve Length = 2 * π * R * (central angle / 360).

To answer your question, I would need more information about the specific problem you are trying to solve, such as the given data or context of the radius and curve length calculation. However, I can provide you with a general approach to these types of problems.
To calculate the radius (R) and express it to two decimal places, you would typically use a formula or relationship involving the radius, and then round the final value to two decimal places. For example, if you were given the circumference (C) of a circle, you would use the formula:
R = C / (2 * π)
Then, you would round the result to two decimal places and include the appropriate units (e.g., meters, centimeters, etc.).
To calculate the circular curve length, you would typically use the formula:
Curve Length = 2 * π * R * (central angle / 360)
Where R is the radius and the central angle is given in degrees. Once again, round the result to two decimal places and include the appropriate units.

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A cone-shaped drinking cup is made from a circular piece of paper of radius R by cutting out a sector and joining the edges CA and CB. Find the maximum capacity of such a cup (Your answer may depend on R).

Answers

The maximum capacity of the cup depends on the radius R and is given by[tex](1/3) \times \pi \times R^3[/tex].

To find the maximum capacity of the cup, we need to maximize its volume. The volume of a cone is given by the formula:

[tex]V = (1/3) \times \pi \times r^2 \times h[/tex]

where r is the radius of the base, h is the height, and π is a constant equal to approximately 3.14159.

In our case, the radius of the base is R, and the height of the cone is h.

To find the height h, we need to use the Pythagorean theorem. Let's call the angle CAB θ, and let's call the length of the segment AB x. Then we have:

sin θ = h / R

cos θ = x / R

Using the Pythagorean theorem, we have:

[tex]x^2 + h^2 = R^2[/tex]

Substituting h in terms of θ and x, we get:

[tex]sin^2 \theta \times R^2 + x^2 = R^2\\x^2 = R^2 - R^2 \times sin^2 \theta\\x = R \times cos \theta[/tex]

Now we can express the volume of the cone in terms of θ and x:

[tex]V = (1/3) \times \pi \times R^2 \times h\\V = (1/3) \times \pi \timesR^2 \times sin \theta \times R\\V = (1/3) \times \pi \times R^3 \times sin \theta[/tex]

To find the maximum volume, we need to find the value of θ that maximizes V. We can do this by taking the derivative of V with respect to θ and setting it equal to zero:

[tex]dV/d\theta = (1/3) \times \pi \times R^3 \times cos \theta = 0[/tex]

This gives us cos θ = 0, which implies θ = π/2.

Therefore, the maximum volume of the cone-shaped cup is:

[tex]V = (1/3) \times \pi \times R^3 \times sin(\pi /2) = (1/3) \times\pi \times R^3[/tex]

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Let y be a binomial random variable with n = 10 and p = 0.4. (a) Use Table 1 to obtain P(3

Answers


To solve this problem, we can use Table 1 (which is a table of values for the cumulative distribution function of the binomial distribution).

(a) To find P(3 < y < 7), we need to calculate the probability of getting between 4 and 6 successes (inclusive) in 10 trials, where the probability of success in each trial is 0.4.

Using Table 1, we can find these probabilities by looking up the values for the cumulative distribution function (CDF) of the binomial distribution. Specifically, we need to find P(y ≤ 6) and P(y ≤ 3), and then subtract the latter from the former to get the probability of getting between 4 and 6 successes.

To find P(y ≤ 6), we look up the row for n = 10 and p = 0.4, and then find the value in the column for y = 6. This value is 0.9688.

To find P(y ≤ 3), we look up the row for n = 10 and p = 0.4, and then find the value in the column for y = 3. This value is 0.3823.

Subtracting P(y ≤ 3) from P(y ≤ 6), we get:

P(4 ≤ y ≤ 6) = P(y ≤ 6) - P(y ≤ 3)
= 0.9688 - 0.3823
= 0.5865

Therefore, the probability of getting between 4 and 6 successes (inclusive) in 10 trials, where the probability of success in each trial is 0.4, is 0.5865.

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A train starts its 221 mile trip at 7:30 A.M. If the train travels at an average speed of 34 miles per hour and stops exactly four minutes at each of ten stations, at what time in the afternoon will it arrive at its final destination

Answers

The train will arrive at its final destination at 2:57 P.M. in the afternoon.

The total distance of the trip is 221 miles and the train travels at an average speed of 34 miles per hour. Using the formula:

time = distance / speed

We can calculate the total time it will take for the train to complete the journey without stopping at stations:

time = 221 / 34 = 6.5 hours

However, the train stops at each of ten stations for four minutes each, so the total time spent stopping is 10 x 4 = 40 minutes, or 0.67 hours. Therefore, the total time the journey will take, including the stops, is:

total time = 6.5 + 0.67 = 7.17 hours

The train departs at 7:30 A.M., so we can add 7.17 hours to this time to find the arrival time:

7:30 A.M. + 7.17 hours = 2:57 P.M.

Therefore, the train will arrive at its final destination at 2:57 P.M. in the afternoon.

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A new mechanical aptitude test has been developed which has a maximum possible score of 100 points. This test is administered twice within a 2-week period, with the following results: Tiime 1 Time 2 Basheer 29 83 Ben 51 97 Flodina 89 30 Miguel 95 22 If these results are typical, this test is:

Answers

Without additional information about the test's validity, reliability, and normative data, it is difficult to draw definitive conclusions about its overall effectiveness as an assessment tool.

Based on the results provided, it appears that the new mechanical aptitude test has a wide range of scores and can produce different results when administered multiple times. The maximum possible score of 100 points suggests that the test measures a broad range of mechanical abilities. The fact that the test is administered twice within a 2-week period also indicates that it may be designed to assess changes or improvements in mechanical skills over time. Based on the given results, it appears that the new mechanical aptitude test, which has a maximum possible score of 100 points and is administered twice within a 2-week period, may have inconsistent results or low test-retest reliability. The significant score differences between Time 1 and Time 2 for Basheer, Ben, Flodina, and Miguel suggest that the test may not be a reliable measure of mechanical aptitude.

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A sandwich shop offers five types of sandwiches in three different sizes in four different kinds of bread. You can add six different fillings (tomatoes, pickles, lettuce, onions, jalapenos, mushrooms) for $0.50 each. In how many ways can you personalize your sandwich

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Assuming that you can choose only one type of sandwich, one size, one type of bread, and any combination of fillings, you can personalize your sandwich in the following way : 5 (types of sandwich) x 3 (sizes) x 4 (types of bread) x 2^6 (choices of fillings) = 5 x 3 x 4 x 64 = 3840

So, you can personalize your sandwich in 3840 different ways by choosing one type of sandwich, one size, one type of bread, and any combination of six different fillings.
Hi! I'd be happy to help you determine the number of ways you can personalize your sandwich at this shop.

1. Sandwich type: There are 5 types of sandwiches to choose from.
2. Sandwich size: There are 3 different sizes available.
3. Bread type: You can select from 4 different kinds of bread.

Now, let's consider the fillings. Since there are 6 fillings, each one can either be included or not included. This results in 2 options (yes or no) for each filling.

To calculate the total number of personalized sandwiches, we can multiply the options for each aspect of the sandwich:

5 (types) * 3 (sizes) * 4 (breads) * 2^6 (fillings) = 5 * 3 * 4 * 64 = 3840

Therefore, you can personalize your sandwich in 3840 different ways.

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2 A bag contains & blacks balls and 5 yellow balls, 2 balls are taken at random one after the other without replacement find-the probability that they are both black they fare both yellow & the first as yellow - and the second is black one is yellow the other is black they are of the same colour​

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The probability values are calculated and listed below

Finding the probabilities

They are both black

Here, we have

Black = 3

Yellow = 5

Sice the balls are not replaced, we have

P(Both black) = 3/8 * 2/7

P(Both black) = 3/28

They are both yellow

Sice the balls are not replaced, we have

P(Both Yellow) = 5/8 * 4/7

P(Both Yellow) = 5/14

The first is yellow and the second is black

Sice the balls are not replaced, we have

P(Yellow and black) = 5/8 * 2/7

P(Both Yellow) = 5/28

One is yellow the other is black

Sice the balls are not replaced, we have

P(One Yellow and One black) = 5/8 * 2/7 * 2

P(One Yellow and One black) = 5/14

They are of the same colour​

Here, we have

P(Same) = 3/28 + 5/14

P(Same) = 13/28

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10. A map uses the scale 3/4 of an inch to represent 3 miles. If the actual distance between two cities is 25 miles, then what is the length on the map?

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Answer:

.75 / 3 = x / 25

.75(25) = 3x

3x = 18.75, so x = 6.25 inches

= 6 1/4 inches

Determine whether the sequence converges or diverges. If it converges, find the limit. A) a n = √ 1 + 4 n 2 1 + n 2 B) a n = cos 2 n 2 n

Answers

The answers are:
A) The sequence converges to 1.
B) The sequence diverges.

For sequence A, we can simplify the expression by dividing both the numerator and denominator by n^2. This gives us:

a_n = √(1 + 4/n^2)/(1 + 1/n^2)

As n approaches infinity, the terms in the denominator become negligible compared to the terms in the numerator. Therefore, the sequence converges to:

lim a_n = √(1 + 0)/1 = 1

For sequence B, we know that the cosine function oscillates between -1 and 1, so the sequence will oscillate as well. As n approaches infinity, the terms in the denominator become larger, causing the oscillations to become more rapid. However, the sequence will never approach a single value, so it diverges.

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Four students majoring in Mathematics and five students majoring in Chemistry are eligible to attend a conference. How many ways are there to select four students to attend the conference if a) any four can attend

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The number of ways of selecting the four students out of nine students for attending the conference is equals to the 126 from using the combination formula.

The number of combinations of n things taken r at a time is determined by the combination formula. It is the factorial of n, divided by the product of the factorial of r and the factorial of the difference of n and r respectively. Mathematically, it can be written as [tex]ⁿCᵣ= \frac{ n!}{r! ( n - r)!}[/tex]

Now, we have number of students majoring in Mathematics = 4

Number of students majoring in chemistry = 5

So, total number of students majoring = 9

Four students are selected to attend conference. Here, n = 9, r = 4 so,

Number of ways to any four can attend =

[tex] 9C_4 = \frac{ 9!}{4! ( 9 - 4)!}[/tex]

[tex]= \frac{ 9×8×7×6×5!}{4! 5!}[/tex]

[tex]=\frac{ 9×8×7×6}{4×3×2}[/tex]

= 18× 7 = 126

Hence, required value is 126.

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How many possible passwords are there that use at least one uppercase letter and at least one lowercase letter

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To calculate the number of possible passwords that use at least one uppercase letter and at least one lowercase letter, considering only letters and no other characters, we can use the formula: 26ⁿ - 2*26ⁿ, where n represents the length of the password.

What is the formula to find the number of possible passwords that use at least one uppercase letter and at least one lowercase letter?

Assuming we are only considering passwords that consist of letters (uppercase or lowercase) and no other characters or symbols, we can use the following approach to find the number of possible passwords that use at least one uppercase letter and at least one lowercase letter:

Calculate the total number of possible passwords without any restrictions on uppercase or lowercase letters. This can be done by raising the number of letters in the alphabet (26) to the length of the password. For example, the total number of possible 4-letter passwords would be 26⁴ = 456976.
Calculate the number of possible passwords that only use lowercase letters. This can be done by raising the number of lowercase letters in the alphabet (26) to the length of the password. For example, the number of possible 4-letter passwords that only use lowercase letters would be 26⁴ = 456976.
Calculate the number of possible passwords that only use uppercase letters. This can be done by raising the number of uppercase letters in the alphabet (26) to the length of the password. For example, the number of possible 4-letter passwords that only use uppercase letters would be 26⁴ = 456976.
Subtract the number of passwords that only use lowercase letters and the number of passwords that only use uppercase letters from the total number of possible passwords to get the number of passwords that use both uppercase and lowercase letters.

Number of passwords that use both uppercase and lowercase letters

= Total number of possible passwords - Number of passwords that only use lowercase letters - Number of passwords that only use uppercase letters

Number of passwords that use both uppercase and lowercase letters = 26ⁿ - 26ⁿ - 26ⁿ = 26ⁿ - 2*26ⁿ, where n is the length of the password.

Therefore, the number of possible passwords that use at least one uppercase letter and at least one lowercase letter is 26ⁿ - 2*26ⁿ, where n is the length of the password.

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Which series converges conditionally? (-1) n=1 In o " (-1)" n3 n=1 . i (-1)" .n n+1 n=1 n=1 () Σ È Inn n n=1

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A series is said to converge conditionally if it converges, but the associated series formed by taking the absolute values of its terms does not converge. This concept mainly applies to alternating series, which have terms that alternate in sign, i.e., positive and negative terms.

To determine if a series converges conditionally, you can apply the Alternating Series Test and the Comparison Test or the Limit Comparison Test.

1. Alternating Series Test: If a series is alternating and satisfies these two conditions, it converges:
  a) The terms are decreasing in magnitude, i.e., |a_n+1| ≤ |a_n|.
  b) The limit of the terms as n approaches infinity is zero, i.e., lim(n→∞) |a_n| = 0.

2. Comparison Test or Limit Comparison Test: Apply either of these tests to the series formed by taking the absolute values of the terms. If the series diverges, then the original series converges conditionally.

To identify conditional convergence, ensure that the alternating series converges and the series with absolute values diverges.

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