A testing bureau reports that the mean for the population of Graduate Record Exam (GRE) scores is 500 with a standard deviation of 90. The scores are normally distributed. The percentile rank of a score of 667 is _________

Answers

Answer 1

The percentile rank of a GRE score of 667, based on a population mean of 500 and a standard deviation of 90, is approximately 96.6%.


To calculate the percentile rank of a GRE score of 667, we need to determine how many scores fall below this value in a normal distribution with a mean of 500 and a standard deviation of 90.

First, we calculate the z-score, which represents the number of standard deviations a particular score is from the mean. The z-score can be calculated as (667 - 500) / 90 = 1.8556.

Next, we use a z-table or a statistical calculator to find the area under the normal curve to the left of the z-score. This area represents the percentile rank.

Looking up the z-score in the table or using a calculator, we find that the percentile rank of a score of 667 is approximately 96.6%.



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Related Questions

E
Learning Task 1
A. Make each pair of radicals similar by reducing the radicand. ​

Answers

To make each pair of radicals similar by reducing the radicand, we need to simplify the radicands to their lowest terms. Simplifying radicals involves finding the largest perfect square factor of the number under the radical sign and rewriting it. Let's take an example:

Pair 1: √50 and √32

To make these radicals similar, we simplify the radicands:

√50 = √(25 × 2) = 5√2

√32 = √(16 × 2) = 4√2

Now, both radicals have the same simplified radicand, which is √2. The pair becomes 5√2 and 4√2, making them similar.

Similarly, you can apply the same process to any other pairs of radicals, simplifying the radicands to their lowest terms and making the pairs similar by having matching simplified radicands.

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One quarter of an object is submerged under water. If the object has weight 20N, its upthrust would be

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The upthrust on the object would be 5N.

What is the upthrust on an object with a weight of 20N?

Given data:

One quarter of the object is submerged under water, the volume of water displaced is one quarter of the object's total volume.

According to Archimedes' principle, the upthrust is equal to the weight of the water displaced.

Weight of the fluid displaced = (1/4) * Weight of the object

= (1/4) * 20N

= 5N.

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What can we interpret about these two coefficients of variation?There is more dispersion relative to the mean in the distribution of GPA compared with the distribution of age of the students.There is less dispersion relative to the mean in the distribution of GPA compared with the distribution of age of the students.There is no difference in the relative dispersion of the two groups.

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There is more dispersion relative to the mean in the distribution of GPA compared to the distribution of age of the students.

The coefficient of variation (CV) is a measure of relative dispersion, which compares the standard deviation to the mean of a dataset. A higher CV indicates greater dispersion relative to the mean, while a lower CV indicates less dispersion.

If the distribution of GPA has a higher coefficient of variation compared to the distribution of age, it means that there is more dispersion relative to the mean in the GPA distribution. This suggests that there is greater variation or diversity in GPA scores among the students compared to their ages. In contrast, if the distribution of GPA had a lower coefficient of variation compared to the distribution of age, it would indicate less dispersion relative to the mean in the GPA distribution, implying less variation or more uniformity in GPA scores.

Therefore, we can interpret that there is more dispersion relative to the mean in the distribution of GPA compared to the distribution of age of the students.

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Which sequence best represents the relationship between DNA and the traits of an organism?

DNA base sequence -> Protein shape -> Amino acid sequence -> Protein function -> Trait

DNA base sequence -> Amino acid sequence -> Protein shape -> Protein function -> Trait

DNA base sequence -> Amino acid sequence -> Protein function -> Protein shape -> Trait

DNA base sequence -> Protein function -> Amino acid sequence -> Protein shape -> Trait

Answers

The sequence that best represents the relationship between DNA and the traits of an organism is: DNA base sequence -> Amino acid sequence -> Protein function -> Protein shape -> Trait.

1. DNA base sequence: The DNA molecule contains genetic information in the form of a sequence of nucleotide bases (adenine, thymine, cytosine, and guanine). This sequence acts as a template for protein synthesis.

2. Amino acid sequence: The DNA base sequence is transcribed into mRNA, which is then translated into a sequence of amino acids. The sequence of amino acids determines the primary structure of a protein.

3. Protein function: The specific sequence of amino acids in a protein determines its function. Proteins perform various roles in cells, such as enzymatic activity, structural support, and signaling.

4. Protein shape: The sequence of amino acids determines the folding and three-dimensional structure of a protein. The shape of a protein is crucial for its proper function.

5. Trait: Proteins play a fundamental role in the expression of traits. Traits are characteristics of an organism that result from the combined effects of various proteins and their functions.

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The price of a cell phone is $199. Jessica’s cell phone carrier is offering a 15% off coupon and the store is offering a 50$ how much will Jessica pay for her phone?

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Jessica will pay $119.15 for her phone after applying the 15% off coupon and the $50 discount.To calculate the final price that Jessica will pay for her phone, we need to consider the 15% off coupon and the $50 discount.

First, let's calculate the discount amount based on the 15% off coupon. We can find this by multiplying the original price ($199) by 15% (or 0.15):

Discount amount from coupon = $199 * 0.15 = $29.85

Next, we need to subtract the $50 discount offered by the store:

Discount amount from store = $50

Now, we can calculate the final price Jessica will pay by subtracting the total discount amount from the original price:

Final price = $199 - ($29.85 + $50) = $199 - $79.85 = $119.15

Therefore, Jessica will pay $119.15 for her phone after applying the 15% off coupon and the $50 discount.

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Fancy Pineapple produces pineapple juice and canned pineapple rings. This year the company anticipates a demand of at least 36,000 pints of pineapple juice and 3,600 cans of pineapple rings. Each pint of pineapple juice requires 2 pineapples, and each can of pineapple rings requires 1 pineapple. The company anticipates using at least 72,000 pineapples for these products. Each pint of pineapple juice costs the company 16¢ to produce, and each can of pineapple rings costs 40¢ to produce. How many pints of pineapple juice and cans of pineapple rings should Fancy Pineapple produce to meet the demand and minimize total costs?

Answers

To meet the demand and minimize total costs, Fancy Pineapple should produce 18,000 pints of pineapple juice and 3,600 cans of pineapple rings.

By producing this quantity, the company can meet the demand for 36,000 pints of pineapple juice and 3,600 cans of pineapple rings while using the minimum number of pineapples and minimizing costs.

To determine the optimal production quantity, we need to consider the requirements for each product and the costs associated with production.

Since each pint of pineapple juice requires 2 pineapples and each can of pineapple rings requires 1 pineapple, the total number of pineapples needed for both products is 39,600 (36,000 pints + 3,600 cans).

Given that the company anticipates using at least 72,000 pineapples, this quantity is sufficient to meet the demand.

Next, we consider the costs. Each pint of pineapple juice costs 16¢ to produce, while each can of pineapple rings costs 40¢ to produce. To minimize costs, the company should produce the product with the lower cost per unit.

In this case, producing pineapple juice is more cost-effective as it costs 16¢ per pint compared to 40¢ per can of pineapple rings. Therefore, Fancy Pineapple should produce 18,000 pints of pineapple juice to meet the demand.

In summary, Fancy Pineapple should produce 18,000 pints of pineapple juice and 3,600 cans of pineapple rings to meet the demand for 36,000 pints of pineapple juice and 3,600 cans of pineapple rings while minimizing costs.

This production quantity ensures the optimal use of pineapples and takes into account the lower production cost per unit for pineapple juice compared to pineapple rings.

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A holiday store is having a sale on bows and rolls of wrapping paper. One sign in the store states, "Buy 1 bow and 1 roll of wrapping paper for only $6. 0. " A second sign in the store states, "5 bows and 1 roll of wrapping paper will only cost $10. 0. "

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When a store advertises sales on different combinations of goods, they are engaging in price discrimination. In this case, the holiday store is practicing second-degree price discrimination because it has different prices for different quantities of bows and wrapping paper.

According to the signs in the store, there are two different deals on bows and rolls of wrapping paper. One sign says that one bow and one roll of wrapping paper can be purchased for $6.00. This means that the store is offering a bundle deal that gives a discount if you purchase both items together. The second sign offers five bows and one roll of wrapping paper for $10.00.

This means that the store is offering an even larger discount for customers who purchase a larger quantity of bows.The fact that the store is offering different prices based on the quantity of goods purchased is an example of price discrimination. Specifically, the store is practicing second-degree price discrimination because it is offering different prices for different quantities of goods.

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Cheyenne and sebastian were given the same polynomial to subtract. Did either of them get the correct answer? Explain your reasoning.

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Neither Cheyenne nor Sebastian got the correct answer when subtracting the given polynomial.

Subtracting polynomials requires careful attention to terms and their coefficients. If both Cheyenne and Sebastian arrived at incorrect answers, it indicates a mistake in their subtraction process. To determine if either of them got the correct answer, we need to compare their solutions with the correct solution. Without the specific polynomial provided, we cannot provide a detailed analysis. However, we can consider some common errors that might occur during polynomial subtraction.

One possible error is neglecting to distribute the subtraction sign to all terms of the polynomial being subtracted. This mistake can result in incorrect coefficients and signs of terms in the final answer. Another common error is misaligning the terms when subtracting, which leads to incorrect cancellations and additions. It's also possible that both Cheyenne and Sebastian made different mistakes, resulting in distinct incorrect answers.

In conclusion, without the specific polynomial and the calculations performed by Cheyenne and Sebastian, it is challenging to determine the exact nature of their errors. However, since they both arrived at incorrect answers, it suggests that they made mistakes during the subtraction process, such as neglecting to distribute the subtraction sign or misaligning the terms.

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newspaper's cover page is 3/8 text, and photographs fill the est.2/3 of the text is an article about endangered species, wha action of the cover page is the article about endangered

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The article about endangered species occupies approximately 1/2 of the cover page.

To determine the portion of the cover page occupied by the article about endangered species, we need to calculate the product of the fractions representing the text and photographs.

First, we find the portion of the cover page occupied by text: 3/8.

Next, we find the portion of the text occupied by photographs: 2/3.

To find the portion of the cover page occupied by the article about endangered species, we multiply these two fractions: (3/8) * (2/3) = 6/24 = 1/4.

Therefore, the article about endangered species occupies 1/4 of the cover page, which is equivalent to 1/2 when simplified.

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The table shows the heights, in inches, of players on a girls’ basketball team. What is the mean height, rounded to the nearest whole number if necessary? 66 68 69 70.

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The mean height of the players on the girls' basketball team, rounded to the nearest whole number, is 68 inches.

The mean height of the players on the girls' basketball team, rounded to the nearest whole number, is X inches.

To find the mean height, we sum up the heights of all the players and divide it by the total number of players.

Given the heights of the players: 66, 68, 69, and 70 inches, we can calculate the mean height.

66 + 68 + 69 + 70 = 273

Next, we divide the sum of the heights by the total number of players, which is 4 in this case.

273 / 4 = 68.25

Rounding the mean height to the nearest whole number, we get X = 68 inches.

Therefore, the mean height of the players on the girls' basketball team, rounded to the nearest whole number, is 68 inches.

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answer this question please its urgent

Answers

b = -15.

Thus, for any value of a = 6 and b = -15, any value of x would be a solution of the equation 3(2x-5) = ax + b.

To find the values of a and b for which any value of x would be a solution of the equation 3(2x-5) = ax + b, we need to consider the properties of the equation.

In the equation 3(2x-5) = ax + b, the left side represents a linear expression that simplifies to 6x - 15. We can equate this to the right side, ax + b.

So, we have the equation 6x - 15 = ax + b.

For any value of x to be a solution, the left side and the right side of the equation should always be equal, regardless of the value of x.

To achieve this, we need the coefficients of x to be equal on both sides of the equation. This means that the coefficient of x on the left side (which is 6) should be equal to the coefficient of x on the right side (which is a).

Therefore, a = 6.

Additionally, the constant term on the left side (-15) should be equal to the constant term on the right side (which is b).

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A student is saving money to buy a skateboard. The student currently has $15 and plans to save $12 every month. Write a function that represents the amount y (in dollars) of money that the student saves after x months.


y=?
Pls Hurry I need it soon

Answers

The function that represents the amount of money the student saves after x months is y = 12x + 15.

In the given scenario, the student initially has $15. Every month, the student saves an additional $12. This means that the amount of money saved after x months can be calculated by multiplying the number of months (x) by the monthly savings of $12 and adding the initial amount of $15. Therefore, the function y = 12x + 15 represents the amount of money (y) the student saves after x months. For example, after 3 months, the student would have saved $12 * 3 + $15 = $51. The function allows for easy calculation of the savings based on the number of months elapsed.

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The carpet Zac selected sells for $2.40 a square foot. How much will it cost Zac to carpet the entrance and hallway of his house?

Answers

The entrance measures 6 feet wide and 8 feet long, and the hallway is 3 feet wide and 14 feet long. We need to calculate the area of both and then multiply by $2.40. We can do that as follows:

Entrance area = 6 feet x 8 feet

= 48 square feet

Hallway area = 3 feet x 14 feet

= 42 square feet

Total area = 48 + 42

= 90 square feet

The cost of the carpet, we can multiply the total area by the cost per square foot: $2.40/square foot x 90 square feet = $216.00

It will cost Zac $216.00 to carpet the entrance and hallway of his house if he selects the carpet that sells for $2.40 a square foot.

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If AE= X+2 and BD = 4x-16, then the length of Line AC is?
Explain briefly which properties of rectangles helped you arrive at your solution.​

Answers

The property of rectangles where opposite sides are equal in length to determine the length of Line AC. By equating AE and BD and solving for X, we found that X = 6. Substituting this value back into AE, we found that Line AC has a length of 8 units.

To determine the length of Line AC, we need to consider the properties of rectangles.

In a rectangle, opposite sides are equal in length. Since AE and BD are opposite sides of the rectangle, they must be equal.

Given that AE = X + 2 and BD = 4X - 16, we can set up an equation:

AE = BD

X + 2 = 4X - 16

To solve for X, we can simplify the equation:

2 + 16 = 4X - X

18 = 3X

Dividing both sides by 3:

X = 6

Now that we have the value of X, we can substitute it back into the expression for AE to find its length:

AE = X + 2

AE = 6 + 2

AE = 8

Therefore, the length of Line AC, which is equal to AE, is 8 units.

In summary, we utilized the property of rectangles where opposite sides are equal in length to determine the length of Line AC. By equating AE and BD and solving for X, we found that X = 6. Substituting this value back into AE, we found that Line AC has a length of 8 units.

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Como calcular la funcion X al cuadrado -1 con los valores del -3 al 3

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La function f(x) = x^2 - 1 se puede evaluar para los valores de x desde -3 hasta 3 sustituyendo cada valor en la expresión y calculando el resultado. Aquí están los cálculos para cada valor:

Para x = -3: f(-3) = (-3)^2 - 1 = 9 - 1 = 8

Para x = -2: f(-2) = (-2)^2 - 1 = 4 - 1 = 3

Para x = -1: f(-1) = (-1)^2 - 1 = 1 - 1 = 0

Para x = 0: f(0) = (0)^2 - 1 = 0 - 1 = -1

Para x = 1: f(1) = (1)^2 - 1 = 1 - 1 = 0

Para x = 2: f(2) = (2)^2 - 1 = 4 - 1 = 3

Para x = 3: f(3) = (3)^2 - 1 = 9 - 1 = 8

Entonces, los valores de la function f(x) = x^2 - 1 para x En el rang de -3 a 3 son: 8, 3, 0, -1, 0, 3, 8 respectivamente.

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Apply a dilation to AC with a scale factor of 2 and center at the point 0.

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To apply a dilation to AC with a scale factor of 2 and a center at the point 0, we first need to understand what a dilation is. A dilation is a transformation that stretches or shrinks an object without changing its shape.

It is defined by a scale factor, which determines how much the object is scaled, and a center of dilation, which is the fixed point about which the object is enlarged or reduced. In this case, AC is a line segment, and the scale factor is 2 with the center at the point 0. To perform the dilation, we multiply the length of AC by the scale factor of 2. The center at 0 means that AC is being stretched or shrunk relative to the origin The result of the dilation would be a new line segment, let's call it A'C', where the length of A'C' is twice the length of AC, and the orientation and direction of the line segment remain the same. The points A' and C' would be located at positions that are twice the distance from the origin compared to the original points A and C, respectively.

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Two cyclists meet at the library and then go for a bike ride.


The distance each person has traveled from her home at x


hours from the start of the ride is linear, as shown.


Which statement must be true?

Answers

Two cyclists meet at the library and then go for a bike ride. The distance each person has traveled from her home at x hours from the start of the ride is linear, as shown.

Let's assume that cyclist A and B start at a distance x and y, respectively, from the library. Further, let's assume that cyclist A starts at t = 0. Then, the distance from the library for cyclist A at t hours after the start of the ride is represented by x + rt. The distance from the library for cyclist B at t hours after the start of the ride is represented by y + st.As the question says, the distance each person has traveled from her home at x hours from the start of the ride is linear. Thus, we can write their distances from the library as:dA(x) = x + rtdB(x) = y + st, where dA and dB represent the distance covered by cyclists A and B respectively.Now, if we want to find out the distance between the two cyclists at x hours after the start of the ride, we can use the following formula:distance between the two cyclists = dB(x) - dA(x)= (y + st) - (x + rt) = (y - x) + (s - r)tSince s and r are constants, the expression (y - x) + (s - r)t is linear with respect to t. Hence, the statement "The distance between the two cyclists is a linear function of x" must be true.

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The right triangle shown below is formed by joining three squares at their vertices. What


is the value of z, the side length of the bottom square?


Answers

We find: z = x Therefore, the value of z, the side length of the bottom square, is equal to the side length of the top square.

Let's assume the side length of the top square is x. Since the right triangle is formed by joining the squares at their vertices, the hypotenuse of the triangle is the diagonal of the top square.

In a square, the length of the diagonal is equal to the side length multiplied by the square root of 2. Therefore, the hypotenuse of the right triangle is x * √2.

The two legs of the right triangle are the side lengths of the squares adjacent to the hypotenuse. In this case, one leg is z, the side length of the bottom square.

Using the Pythagorean theorem, we have the equation:

z^2 + z^2 = (x * √2)^2

Simplifying the equation, we get:

2z^2 = 2x^2

Dividing both sides by 2, we have:

z^2 = x^2

Taking the square root of both sides, we find:

z = x

Therefore, the value of z, the side length of the bottom square, is equal to the side length of the top square.

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How many minutes does it take Arnob to catch up to Kathleen? 9. 8 10 73. 5 75.

Answers

It would take Arnob approximately 4.12 minutes to catch up to Kathleen.

We need to find out the time it would take Arnob to catch up to Kathleen, given their speeds. Since we know their speeds, we can set up a proportion with the distance they are apart and their speeds. The proportion would be as follows:Distance Arnob travels = Distance Kathleen travels - Distance Arnob travels Arnob's speed = Kathleen's speed. Distance Arnob travels = Distance Kathleen travels - Distance Arnob travels Arnob's speed = Kathleen's speedTherefore, using the distance formula:Distance = Rate x TimeD = RTWhere:D is the distanceR is the rateT is the timeIn this scenario, Arnob and Kathleen are moving towards each other, meaning the distance between them is getting shorter. We can add their speeds together to find the rate at which the distance between them is getting shorter. Rate = Arnob's speed + Kathleen's speed = 9 + 8 = 17Since we know the rate at which the distance between them is getting shorter, we can use the formula to find the time it would take for Arnob to catch up to Kathleen. Let's call this time "t".D = RTDistance = Distance between Arnob and Kathleen = 75 - 5 = 70R = Rate at which the distance is getting shorter = 17T = Time it would take for Arnob to catch up to KathleenTherefore,70 = 17tSolving for t:t = 70/17 ≈ 4.12 minutes

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Find the area of triangle obc in terms of r and theta

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The area of triangle OBC in terms of r and θ is (1/2) * r^2 * sin(θ), which simplifies to (1/2) * r^2.

To find the area of triangle OBC in terms of r and θ, we can utilize the formula for the area of a triangle: Area = (1/2) * base * height. In this case, the base of the triangle is the side BC, which has a length equal to r, and the height is the perpendicular distance from point O to side BC.

Considering that point O is the origin (0,0) and point B is located on the positive x-axis, the distance from the origin to the line BC is equal to the radius r. Thus, the height of the triangle is r.

To find the angle θ between the positive x-axis and the line BC, we can use trigonometry. Since the line BC forms an angle of θ with the positive x-axis, the perpendicular from point B to the x-axis creates a right triangle. Therefore, sin(θ) can be determined by dividing the height of the triangle (r) by the hypotenuse (also r), resulting in sin(θ) = r/r = 1.

Substituting the values into the formula for the area of a triangle, we have Area = (1/2) * r * r * 1 = (1/2) * r^2.

Therefore, the area of triangle OBC in terms of r and θ is (1/2) * r^2 * sin(θ), which simplifies to (1/2) * r^2.

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Ethan looks up at an angle of 5 degrees and sees the goodyear blimp. If the blimps altitude is 1150 feet and its speed is 15mph,in how many minutes will the blimp be directly overhead of ethan? (1 mile = 5280ft. )

Answers

The blimp will be directly overhead of Ethan in 9.94 minutes.

To determine how long it will take for the blimp to be directly overhead of Ethan, we can use the information about the blimp's altitude and speed.

First, let's find the horizontal distance covered by the blimp in the time it takes to be directly overhead. Since the blimp is moving at a speed of 15 mph, we need to convert this to feet per minute:

15 mph * (5280 ft / 1 mile) * (1 hour / 60 minutes) = 1320 ft/minute

So, the blimp is moving at a rate of 1320 feet per minute horizontally.

Now, let's calculate the vertical distance the blimp needs to cover to be directly overhead of Ethan. This is equal to the altitude of the blimp, which is given as 1150 feet.

Since Ethan is looking up at an angle of 5 degrees, we can use trigonometry to find the horizontal distance covered by the blimp when it reaches the altitude of 1150 feet.

tan(5 degrees) = vertical distance / horizontal distance

We want to solve for the horizontal distance, so rearranging the equation:

horizontal distance = vertical distance / tan(5 degrees)

horizontal distance = 1150 ft / tan(5 degrees)

Using a calculator, we find:

horizontal distance ≈ 13129.01 ft

Now, we can determine the time it takes for the blimp to cover this horizontal distance at a rate of 1320 feet per minute:

time = horizontal distance / rate

time = 13129.01 ft / 1320 ft/minute

Calculating this, we get:

time ≈ 9.94 minutes

Therefore, the blimp will be directly overhead of Ethan in approximately 9.94 minutes.

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carbon-11 has half-life of 20 minutes. If a 50 gram sample of carbon -11 begins to decay, write a model for the amount, A, that is still radioactive after m-minutes. Then, use your model to determine how much of the original sample is still radioactive after a half- hour. Round to the nearest tenth of a gram

Answers

Rounded to the nearest tenth of a gram, the amount of the original sample that is still radioactive after half an hour is approximately 17.7 grams.

To model the decay of carbon-11 over time, we can use the exponential decay formula A = A₀ * (1/2)^(t/h), where A is the amount remaining, A₀ is the initial amount, t is the time elapsed, and h is the half-life. In this case, the initial amount is 50 grams and the half-life is 20 minutes. Using this model, we can determine the amount of carbon-11 remaining after a half-hour (30 minutes). Using the exponential decay model A = A₀ * (1/2)^(t/h), we can calculate the amount of carbon-11 remaining after a certain time. For a half-life of 20 minutes, the equation becomes A = 50 * (1/2)^(t/20). To find the amount remaining after half an hour (30 minutes), we substitute t = 30 into the equation:

A = 50 * (1/2)^(30/20)

A = 50 * (1/2)^(3/2)

A = 50 * (√1/2)^3

A = 50 * (√1/8)

A = 50 * (1/2√2)

A = 25/√2

To determine the decimal value of the amount remaining, we can approximate √2 as 1.414. Therefore:

A ≈ 25/1.414 ≈ 17.68 grams

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Find the values of $x$x​ and y$y$y​ .x plus 2 is equal to 3 y$x+2=3y$x+2=3y​A right triangle with the acute angles labeled x degrees and y degrees.

Answers

Equation x + 2 = 3y, which represents a relation between acute angles x,y in a right triangle. To find values, we need more information.With such information, we could apply trigonometric functions.

The equation x + 2 = 3y relates the angles of a right triangle, but it is not sufficient to determine the specific values of x and y. The relationship between the acute angles in a right triangle is given by the trigonometric ratios, such as sine, cosine, or tangent. However, without any additional information or equations, we cannot solve for the exact values of x and y.

To determine the values of x and y, we would need either the lengths of the sides of the right triangle or additional equations or relationships between the angles. With such information, we could apply trigonometric functions or use geometric properties of right triangles to find the values of x and y.

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Write 6.373 x 10 to the fifth power in standard notation

Answers

The number 6.373 x 10^5 can be written in standard notation as 637,300. This can be explained by understanding the concept of scientific notation and converting it back to its standard form.

Scientific notation is a way to represent very large or very small numbers using powers of 10. In scientific notation, a number is expressed as a coefficient multiplied by 10 raised to a certain power.

In the given number, 6.373 x 10^5, the coefficient is 6.373, and the exponent is 5. This means that we take the coefficient and multiply it by 10 raised to the power of 5.

To convert it back to standard notation, we perform the following calculation:

6.373 x 10^5 = 6.373 * 10 * 10 * 10 * 10 * 10

Simplifying the calculation, we get:

6.373 * 10 * 10 * 10 * 10 * 10 = 6.373 * 100,000

Multiplying 6.373 by 100,000, we obtain:

6.373 * 100,000 = 637,300

Therefore, the number 6.373 x 10^5 can be expressed in standard notation as 637,300, which is the final result.

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A sporting goods store is deciding which type of baseball glove they should carry for the upcoming season. Which group should the story survey to achieve the most valid results?A. Every tenth person who enters the grocery store beside the sporting goods store.B. Every parent whose child played middle school sports last year.C. The players of last year's middle school and high school baseball and softball teams.D. Every person who buys a pair of running shoes at the sporting goods store.

Answers

Answer:

Step-by-step explanation:

The patient recovery time from a particular surgical procedure is normally distributed with a mean of 4 days and a standard deviation of 1.9 days. Let X be the recovery time for a randomly selected patient.


Round all answers to 4 decimal places where possible.

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The question asks about the recovery time for a randomly selected patient from a surgical procedure. This recovery time follows a normal distribution with a mean of 4 days and a standard deviation of 1.9 days.

To answer questions about probabilities or specific values of the recovery time, we can use the properties of the normal distribution.

Standardize the variable: Convert the recovery time value (X) into a standard score or z-score using the formula: z = (X - μ) / σ, where μ is the mean and σ is the standard deviation.

Use the standard normal distribution table or a calculator to find the corresponding probability or value associated with the standardized z-score.

For example, if you want to find the probability that a randomly selected patient has a recovery time less than a certain number of days (X), you would calculate the z-score, look up the corresponding probability in the standard normal distribution table, and round the answer to four decimal places.

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averi bought a 6 ounce can of pecans for 4.89 . what was the unit price

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The unit price of the pecans is $0.815 per ounce (rounded to three decimal places).

To calculate the unit price, we divide the total cost of the item by the quantity purchased. In this case, Averi bought a 6-ounce can of pecans for $4.89.

To find the unit price, we divide the total cost ($4.89) by the quantity purchased (6 ounces):

Unit price = Total cost / Quantity purchased

= $4.89 / 6 ounces

To simplify the unit price, we can divide both the numerator and denominator by their greatest common divisor (GCD). In this case, the GCD of 4.89 and 6 is 3.

Dividing both the numerator and denominator by 3, we get: Unit price = ($4.89 / 3) / (6 ounces / 3)

= $1.63 / 2 ounces

Therefore, the unit price of the pecans is $0.815 per ounce (rounded to three decimal places). This means that Averi paid approximately $0.815 for each ounce of pecans she purchased.

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Solve: 5. 6 = 3. 1 – 12. 5|1 – 0. 8x| 5. 6 = 3. 1 – 12. 5|1 – 0. 8x| 2. 5 = –12. 5|1 – 0. 8x| –0. 2 = |1 – 0. 8x| Finish the steps shown to find the possible value(s) for x that make the statement true. X = –1 or x = 1. 5 x = 1 or x = –1. 5 x = 0 There are no solutions.

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The possible values for x that make the statement true are x = -1 or x = 1.5.

Let's solve the equation step by step to find the possible values for x. We start with the given equation:

5.6 = 3.1 - 12.5|1 - 0.8x|

We can begin by isolating the absolute value expression:

2.5 = -12.5|1 - 0.8x|

Next, divide both sides of the equation by -12.5:

-0.2 = |1 - 0.8x|

Now we have two cases to consider, one where the absolute value is positive and another where it is negative.

Case 1: 1 - 0.8x is positive:

-0.2 = 1 - 0.8x

Solving this equation:

-0.8x = -1.2

x = 1.5

Case 2: 1 - 0.8x is negative:

-0.2 = -(1 - 0.8x)

Solving this equation:

0.2 = 1 - 0.8x

-0.8x = -0.8

x = -1

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Find the values of angles h, f, and g. h /60° 20° 130° 9 f = Oh= 40°; f= 20°; g = 50° Oh= 30°; f= 60°; g = 50° Oh= 30°; f= 70°; g = 50° Oh= 60°; f = 20°; g = 50°​

Answers

the value of f is 70, g is 50 and h is 30. So, correct option is

c

We know that sum of all angles of a triangle is 180°.

So, h + 20 + 130 = 180

h + 150 = 180

h = 180 - 150

h = 30

We know that straight line make an angle of 180°

130 + g = 180

g = 180 - 130

g = 50

g + f + 60 = 180

50 + f + 60 = 180

f + 110 = 180

f = 180 - 110

f = 70

Therefore, the value of f is 70, g is 50 and h is 30. So, correct option is

c

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Given question is incomplete, the complete question is below

Find the values of angles h, f, and g

The potters were having a prarty and purchased some coke and pepsi 34% was coke andd they bought s totsl of 50 cans. how many cans of pepsi were purchased

Answers

The required potters purchased 33 cans of Pepsi.

The potters purchased a total of 50 cans of soda.

34% of the purchased soda was Coke.

To find the number of cans of Pepsi purchased, we need to subtract the number of Coke cans from the total number of cans.

Number of Coke cans = 34% of 50 cans = 0.34 * 50 = 17 cans

Number of Pepsi cans = Total number of cans - Number of Coke cans

Number of Pepsi cans = 50 cans - 17 cans

Number of Pepsi cans = 33 cans

Therefore, the potters purchased 33 cans of Pepsi.

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