Davidson has just arrived at the foothills of the Rockies and is on a cross-country motorcycle trip. He intends to take an hour longer on the east side of the 245 km trip than on the west side of the 225 km trip. On the downhill side, he intends to average 20 km/h more to achieve this. The trip through the Rockies will take approximately 17.375 hours.
Let the speed of the motorcycle on the west side of the trip be x km/h.
So, the time required to complete the 225 km trip will be:
Time for the west side of the trip = 225/x
Let the speed of the motorcycle on the east side of the trip be x + 20 km/h.
So, the time required to complete the 245 km trip will be:
Time for the east side of the trip = 245 / (x + 20)
We know that the time Davidson takes on the east side of the trip will be an hour longer than on the west side. Therefore, we can form the following equation:
245/(x + 20) = 225/x + 1
Multiplying both sides by x(x + 20),
we get:245x = 225(x + 20) + x(x + 20)
Simplifying the equation:20x = 400x = 20 km/h
Time taken on the west side of the trip is 225/20 = 11.25 hours
Time taken on the east side of the trip is 245/40 = 6.125 hours
So the total time for the trip through the Rockies is 11.25 + 6.125 = 17.375 hours, or about 17 hours and 22.5 minutes (rounded to the nearest minute).
Therefore, the trip through the Rockies will take approximately 17.375 hours.
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Michael was at the library and then drove 8 miles east to the coffee shop. He knows that the distance from the library to his house is 17 miles. How far is it from the coffee shop to his house?
To determine the distance from the coffee shop to Michael's house, we need to subtract the distance he traveled from the library to the coffee shop (8 miles) from the total distance between his house and the library (17 miles).
Using the information provided, we can calculate the distance from the coffee shop to his house as follows:
Distance from coffee shop to house = Total distance - Distance from library to coffee shop
Distance from coffee shop to house = 17 miles - 8 miles
Distance from coffee shop to house = 9 miles
Therefore, the distance from the coffee shop to Michael's house is 9 miles. This calculation is derived by subtracting the distance he traveled from the library to the coffee shop from the total distance between his house and the library.
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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.
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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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
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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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.
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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Describe how to determine whether the parabola y=−2x2 + 2x +1 is opening downward. A.Open downward because the leading coefficient is an integer. B.Open downward because the constant term is not a fraction. C.Open downward because the leading coefficient is a negative real number. D.Open downward because the middle term is a positive .
The correct answer is C. The parabola y = -2x^2 + 2x + 1 opens downward because the leading coefficient (-2) is a negative real number.
To determine the direction in which a parabola opens, we look at the leading coefficient of the quadratic term (the coefficient of x^2).
If the leading coefficient is positive, the parabola opens upward.
If the leading coefficient is negative, the parabola opens downward.
In this case, the leading coefficient is -2, which is a negative real number. Therefore, the parabola y = -2x^2 + 2x + 1 opens downward.
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Adler and Erika solved the same equation using the calculations below.Adler’s WorkErika’s WorkStartFraction 13 over 8 EndFraction = k + one-half. StartFraction 13 over 8 EndFraction minus one-half = k + one-half minus one-half. StartFraction 9 over 8 EndFraction = k.StartFraction 13 over 8 EndFraction = k + one-half. StartFraction 13 over 8 EndFraction + (negative one-half) = k + one-half + (negative one-half). StartFraction 9 over 8 EndFraction = k.Which statement is true about their work?Neither student solved for k correctly because K = 2 and StartFraction 1 over 8 EndFraction.Only Adler solved for k correctly because the inverse of addition is subtraction.Only Erika solved for k correctly because the opposite of One-half is Negative one-half.Both Adler and Erika solved for k correctly because either the addition property of equality or the subtraction property of equality can be used to solve for k.
Neither student solved the equation for k correctly because k = 2 and 1/8.
Both Adler and Erika made errors in their calculations. Adler incorrectly equated 13/8 with k + 1/2, and then subtracted 1/2 from both sides, resulting in 9/8 = k. This is incorrect because k should be equal to 2 and 1/8, not 9/8. On the other hand, Erika correctly set up the equation as 13/8 = k + 1/2, but she made an error when subtracting 1/2 from both sides. Instead of obtaining 9/8 as she claimed, it should be 12/8 or simply 3/2. Therefore, neither student solved for k correctly, and the correct answer is that k is equal to 2 and 1/8, which was not obtained by either of them.
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Two trains, Train A and Train B, weigh a total of 274 tons. Train A is heavier than Train B. The difference of their weights is 204 tons. What is the weight of each train?
Two trains, Train A and Train B weigh a total of 274 tons. It is known that Train A is heavier than Train B and the difference between their weights is 204 tons.
We are to determine the weight of each train .To solve the problem, we can use the following system of equations :Let the weight of Train A be "x" tons Let the weight of Train B be "y" tons x + y = 274 [Equation 1]x - y = 204 [Equation 2]To solve for the weight of each train, we will add Equations 1 and 2 as follows:(x + y) + (x - y) = 274 + 2042x = 478Divide both sides by 2:2x/2 = 478/2x = 239 tons This means that Train A weighs 239 tons. Substitute this value of "x" into Equation 1:x + y = 274239 + y = 274y = 274 - 239y = 35 , Train B weighs 35 tons. In summary, Train A weighs 239 tons while Train B weighs 35 tons.
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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.
Answer:
Step-by-step explanation:
For a distribution that is skewed right the median is.
For a distribution that is skewed right, the median is typically less than the mean and is located to the left of the distribution's peak.
It represents the middle value when the data is arranged in ascending order and is less affected by extreme outliers compared to the mean. The median provides a measure of central tendency that is more representative of the "typical" value in a positively skewed distribution.
In a skewed right distribution, the tail of the distribution extends towards the higher values. This indicates that there are relatively more lower values and fewer higher values in the dataset. As a result, the mean is pulled towards the higher values, making it larger than the median.
The median, on the other hand, represents the middle value in the dataset when arranged in ascending order. It is less sensitive to extreme outliers compared to the mean because it focuses on the middle value rather than the overall distribution. Therefore, in a skewed right distribution, the median tends to be smaller than the mean and is located to the left of the peak of the distribution.
The use of median in a skewed right distribution helps provide a more robust measure of central tendency, as it is less influenced by extreme values and better represents the typical value in the data.
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The histograms and summary statistics summarize the data for the number of hits in the season by baseball players in two leagues.
Histograms and summary statistics are tools used to summarize and analyze data. They provide a visual representation and numerical summary of the distribution of a variable or set of data.
In the context of baseball players and their number of hits in a season, histograms and summary statistics can help identify patterns, measure central tendency, and assess the variability of the data. To summarize the data using histograms and summary statistics for the number of hits in the season by baseball players in two leagues, follow these steps:
Collect the data on the number of hits for each player in each league.
Create separate histograms for each league, with the number of hits on the x-axis and the frequency or count of players on the y-axis. The histograms will visually represent the distribution of hits in each league.
Calculate summary statistics for each league, including measures of central tendency (such as mean or median) and measures of variability (such as standard deviation or range). These statistics will provide numerical summaries of the data for each league.
Compare the histograms and summary statistics between the two leagues to identify any differences or similarities in the number of hits by baseball players.
Use the histograms and summary statistics to gain insights into the performance and distribution of hits in each league, potentially identifying league-specific trends or patterns.
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Write 6.373 x 10 to the fifth power in standard notation
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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E
Learning Task 1
A. Make each pair of radicals similar by reducing the radicand.
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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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
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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Gaseous ammonia chemically reacts with oxygen o2 gas to produce nitrogen monoxide gas and water vapor. Calculate the moles of nitrogen monoxide produced by the reaction of 2. 00 mol of oxygen. Be sure your answer has a unit symbol, if necessary, and round it to the correct number of significant digits
The reaction of 2.00 mol of oxygen with gaseous ammonia produces a certain amount of nitrogen monoxide gas. The moles of nitrogen monoxide produced can be calculated using stoichiometry.
To determine the moles of nitrogen monoxide produced, we need to use the balanced chemical equation for the reaction between gaseous ammonia (NH₃) and oxygen (O₂):
4 NH₃ + 5 O₂ → 4 NO + 6 H₂O
From the balanced equation, we can see that 4 moles of NH₃ react with 5 moles of O₂ to produce 4 moles of NO. This means that the ratio between O₂ and NO is 5:4.
Given that we have 2.00 mol of O₂, we can set up a proportion to calculate the moles of NO produced:
(2.00 mol O₂) / (5 mol O₂) = (x mol NO) / (4 mol NO)
Cross-multiplying the equation, we get:
5x = 8
Solving for x, we find that x = 8/5 = 1.6 mol NO.
Therefore, the moles of nitrogen monoxide produced by the reaction of 2.00 mol of oxygen is 1.6 mol NO.
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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°
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
Apply a dilation to AC with a scale factor of 2 and center at the point 0.
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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A 4-ft vertical post casts a 10-in shadow at the same time a nearby cell phone tower casts a 120-ft shadow. How tall is the cell phone tower?
A 4-ft vertical post casts a 10-in shadow at the same time a nearby cell phone tower casts a 120-ft shadow. The height of the cell phone tower is 576 ft.
To calculate the height of the cell phone tower, we will use proportions. We know that the height of the 4-ft post is proportional to the height of the cell phone tower. The ratio of the heights will be the same as the ratio of their shadows. This gives us the following proportion:
height of post / length of post shadow = height of cell phone tower / length of cell phone tower shadow
Let's plug in the given values and solve for the height of the cell phone tower:
4 ft / 10 in = height of cell phone tower / 120 ft
First, we need to convert the units to be consistent. Let's convert 4 ft to inches:4 ft = 48 in
Now, we can substitute the values and solve for the height of the cell phone tower:
48 in / 10 in = height of cell phone tower / 120 ft4.8
= height of cell phone tower / 120 ftheight of cell phone tower
= 4.8 * 120 ft
height of cell phone tower = 576 ft
Therefore, the height of the cell phone tower is 576 ft.
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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.
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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answer this question please its urgent
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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The longevity of people living in a certain region is normally distributed with a standard
deviation of 14 years. What is the mean longevity in years if 30% of the people live longer
than 75 years?
The mean longevity of people in the region is approximately 82.336 years, as calculated by finding the z-score corresponding to the 30th percentile and using the formula for a normal distribution.
Given that the longevity of people in the region is normally distributed with a standard deviation of 14 years, we can determine the mean longevity by finding the z-score corresponding to the 30th percentile.
To find the z-score, we look up the corresponding value in the standard normal distribution table. The 30th percentile corresponds to a z-score of approximately -0.524.
Using the formula for a normal distribution:
z = (x - μ) / σ
Where z is the z-score, x is the value, μ is the mean, and σ is the standard deviation.
Rearranging the formula to solve for the mean, we have:
μ = x - (z * σ)
Substituting the known values, we get:
μ = 75 - (-0.524 * 14)
μ ≈ 75 + 7.336
μ ≈ 82.336
Therefore, the mean longevity of people in the region is approximately 82.336 years.
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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
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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Como calcular la funcion X al cuadrado -1 con los valores del -3 al 3
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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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. )
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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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
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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Can someone seriously please help me! and explain :(
Remy stands on a dock at the edge of a lake represented by point C. Points A and B represent two buoys anchored in the lake. Remy plans to swim from C to A, then to B, and then back to C. The shortest distance from Remy to the swim route AB¯¯¯¯¯¯¯¯ is 60 meters and is measured from C to D
Here's an explanation to help you understand the problem. Remy stands on the dock represented by point C. He plans to swim from C to A, then from A to B, and then from B back to C. Now, from Remy to the swim route AB¯¯¯¯¯¯¯¯, the shortest distance is 60 meters, which is measured from C to D.
From the diagram ,AC = x meters and BD = y meters Since Remy swims from C to A and then to B, he swims a distance equal to AB. Thus, the total distance that he swims can be given as follows: AB + BA + BC, where BA is equal to 2x, and BC is equal to 2y.Then, the distance that Remy swims can be given by AB + 2x + 2yNow, we know that Remy swims from C to D at a distance of 60 meters. Therefore, we can represent x in terms of y using the Pythagorean theorem as shown below:x² + y² = 60² ... (Equation 1)Also, we know that Remy plans to swim back to point C. Therefore, the total distance that he will swim is given by: AB + 2x + 2y + AC Substituting AB with 2x, we have:4x + 2y + AC ... (Equation 2)Also, substituting Equation 1 into Equation 2, we get:4x + 2y + √(3600 - y²)Simplify the expression by multiplying both sides by 2:8x + 4y + 2√(3600 - y²)Now, substituting 2x with AB and 2y with BD, we get:2(AB) + AB + 2(BD) + BD + 2√(3600 - y²)Simplify the expression:4AB + 4BD + 2√(3600 - y²)Therefore, the total distance that Remy swims is equal to:4AB + 4BD + 2√(3600 - y²)Therefore, the correct answer is 4AB + 4BD + 2√(3600 - y²).
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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.
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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One quarter of an object is submerged under water. If the object has weight 20N, its upthrust would be
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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1. Dylan is part of a volunteer crew constructing houses for low-income families.
Completing one house always takes 200 days of labor. How long does it take one person
to complete one house?
Given, Completing one house always takes 200 days of labor. To find, Let the time taken by one person to complete one house be 't' days. We know that; Work = Time × Rate of Work
The work required to complete one house is 1 (as they need to construct only one house).The rate of work is the number of houses constructed by all the people in one day. Therefore, if 'n' people are working, then their combined rate of work is 1/200.
We have only one person working here, so his rate of work is 1/t.
Therefore, we get;1/200 = 1/t
⇒ t = 200
Therefore, it will take one person 200 days to complete one house.
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On a certain map, 2.5 inches represents 22 miles. Cucumber City and Pickleville are 8 inches apart on the map. What is the actual distance between Cucumber City and Pickleville?
The actual distance between the two cities _____ miles.
The actual distance between Cucumber City and Pickleville is 70.4 miles.
To find the actual distance between Cucumber City and Pickleville, we can use the given scale on the map and set up a proportion.
According to the map scale, 2.5 inches represents 22 miles. This means that for every 2.5 inches on the map, the actual distance in the real world is 22 miles.
Let's denote the actual distance between Cucumber City and Pickleville as 'x' miles. We know that on the map, these two cities are 8 inches apart.
Using the proportion:
(2.5 inches) / (22 miles) = (8 inches) / (x miles)
2.5 inches * x miles = 8 inches * 22 miles
2.5x = 8 * 22
2.5x = 176
x = 176 / 2.5
x = 70.4
Therefore, the actual distance between Cucumber City and Pickleville is 70.4 miles.
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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. "
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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