The radius of a ferris wheel is 90 feet and it completes two rotations every minute (counter-clockwise). If at t=0 is at ground level, find a equation for the height of rider in feet as a function of time in second

The correct answer is that the event you described is dependent.

When Yolanda grabs 2 red checkers and replaces them between each draw, the outcome of the first draw affects the probability of the second draw. This is because replacing the checkers means that the probability of drawing a red checker remains the same for each individual draw, but the overall probability changes after each draw.

Let's break it down:

In the first draw, Yolanda has a certain probability of drawing a red checker.

After the first draw, if Yolanda indeed drew a red checker, there is one less red checker in the pool and the total number of checkers has decreased.

In the second draw, Yolanda now has a different probability of drawing a red checker compared to the first draw because the pool of available checkers has changed.

Therefore, the outcome of the first draw affects the probability of the second draw, making the event dependent.

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Let's assume the number of regular bouquets as "x" and the number of mini bouquets as "y".

According to the given information, each regular bouquet has 6 roses and 2 peonies, and each mini bouquet has 2 roses and 2 peonies.

Therefore, the total number of roses used in the regular bouquets would be 6x, and the total number of peonies used in the regular bouquets would be 2x.

Similarly, the total number of roses used in the mini bouquets would be 2y, and the total number of peonies used in the mini bouquets would be 2y.

We also know that the florist has a total of 60 peonies available.

So, the equation for the total number of peonies used in both types of bouquets would be:

2x + 2y = 60

Now, let's consider the total number of bouquets. The florist has a total of 100 bouquets.

So, the equation for the total number of bouquets would be:

x + y = 100

We have two equations:

2x + 2y = 60

x + y = 100

We can solve these equations to find the values of x and y, representing the number of regular and mini bouquets, respectively.

Using any suitable method for solving linear equations, we find that x = 30 and y = 70.

Therefore, the florist makes 30 regular bouquets and 70 mini bouquets.

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The diameter of a cylinder is given as 6 cm and the height as 12 cm. We can use the formula of the circumference of a cylinder to calculate the circumference. We know that the circumference of a circle is πd, where d is the diameter of the circle.

Now, the circumference of a cylinder is nothing but the perimeter of its circular base. Therefore, the circumference of a cylinder is 2πr where r is the radius of the circular base. In this question, the diameter is given as 6 cm, which means the radius will be half of it. Hence the radius of the circular base will be 6/2 = 3 cm. The height of the cylinder is given as 12 cm, which means the circumference will be the perimeter of the circular base times the height of the cylinder. The circumference will be:2πr = 2π(3) = 6π cm. The circumference of a cylinder with the diameter of 6 cm and height of 12 cm is 6π cm.

The circumference of a cylinder with the diameter of 6 cm and height of 12 cm is 6π cm. The diameter of a cylinder is given as 6 cm and the height as 12 cm. We can use the formula of the circumference of a cylinder to calculate the circumference. We know that the circumference of a circle is πd, where d is the diameter of the circle. Now, the circumference of a cylinder is nothing but the perimeter of its circular base. Therefore, the circumference of a cylinder is 2πr where r is the radius of the circular base. In this question, the diameter is given as 6 cm, which means the radius will be half of it. Hence the radius of the circular base will be 6/2 = 3 cm. The height of the cylinder is given as 12 cm, which means the circumference will be the perimeter of the circular base times the height of the cylinder. The circumference will be:2πr = 2π(3) = 6π cm. The circumference of a cylinder with the diameter of 6 cm and height of 12 cm is 6π cm, where π is pi and is equal to approximately 3.14.

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The volume of the empty portion of Container B is given as follows:

34.6 ft³.

The volume of a cylinder of radius r and height h is given by the equation presented as follows:

V = πr²h.

(the radius is half the diameter).

Hence the volume of Container A is given as follows:

V = π x 7² x 13

V = 2001.2 ft³.

The volume of container B is given as follows:

V = π x 6² x 18

V = 2035.8 ft³.

Then the volume of the empty portion of Container B is given as follows:

2035.8 - 2001.2 = 34.6 ft³.

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- Plane 1 travels at a speed of 225 mph.

- Plane 2 has an airspeed of 3 times faster than Plane 1, which is 3 * 225 mph = 675 mph.

- The wind speed is 500 mph.

Let's analyze the information provided:

Plane 1:

- Distance traveled: 450 miles

- Direction: South

- Time taken: 2 hours

Plane 2:

- Distance traveled: 525 miles

- Direction: North

- Time taken: 3 hours

- Airspeed: 3 times faster than Plane 1

We can calculate the speed of Plane 1 and the wind speed by dividing the distance traveled by the time taken.

Plane 1's speed = Distance / Time = 450 miles / 2 hours = 225 miles per hour (mph)

Let's assume the speed of the wind is W mph.

For Plane 2, since it is traveling against the wind, we need to consider the effect of the wind on its speed. The effective speed of Plane 2 against the wind can be calculated as the airspeed of Plane 2 minus the wind speed.

Effective speed of Plane 2 = Airspeed of Plane 2 - Wind speed = 3 * Plane 1's speed - W

Now we can use the formula: Speed = Distance / Time to calculate the wind speed.

For Plane 2:

Effective speed of Plane 2 = Distance / Time = 525 miles / 3 hours = 175 mph

175 mph = 3 * 225 mph - W

W = 3 * 225 mph - 175 mph

W = 675 mph - 175 mph

W = 500 mph

The wind speed is calculated to be 500 mph.

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When each ticket costs $2, and the prize for the winner is $50 then the cheerleading squad needs to sell at least 88 tickets to raise $175.

The cheerleading squad wants to raise $175 through their raffle ticket sales.

Each ticket costs $2, and the prize for the winner is $50. We need to determine how many tickets the team needs to sell to reach their fundraising goal.

Let's assume the number of tickets the team needs to sell is 'x'.

Since each ticket costs $2, the total revenue generated from ticket sales can be calculated as 2 * x.

To reach their fundraising goal of $175, the total revenue from ticket sales should be equal to $175.

Therefore, we can set up the equation:

2 * x = 175

Solving for 'x', we divide both sides of the equation by 2:

x = 175 / 2

Simplifying further, we get:

x = 87.5

Since we cannot sell a fractional number of tickets, we round up the value to the nearest whole number.

Therefore, the cheerleading squad needs to sell at least 88 tickets to raise $175.

It's worth noting that selling exactly 87 tickets would only generate $174 in revenue, which is less than the fundraising goal.

Hence, they need to sell a minimum of 88 tickets to reach or exceed their target of $175.

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The area of a rhombus can be determined by multiplying the length of the base by the altitude. We can utilize the formula to figure out the area of the rhombus whose side is 8 m and altitude is 5 m. The area of the rhombus is 20 square meters.

Formula to find the area of a rhombus The area of a rhombus (A) is equal to half the product of its diagonal (d1 and d2). Mathematically, it can be represented as follows: A = ½ × d1 × d2Since a rhombus is a special case of a kite, we can calculate its area using the following equation: A = (½) × (base) × (height)In this particular problem, the length of the base (one of the sides of the rhombus) is 8 meters, and the altitude (the height) is 5 meters.

So, the area of the rhombus is: A = (½) × (base) × (height)A = (½) × (8 meters) × (5 meters)A = 20 square meters Therefore, the area of the rhombus is 20 square meters. Formula to find the area of a rhombus The area of a rhombus (A) is equal to half the product of its diagonal (d1 and d2). Mathematically, it can be represented as follows: A = ½ × d1 × d2Since a rhombus is a special case of a kite, we can calculate its area using the following equation: A = (½) × (base) × (height)In this particular problem, the length of the base (one of the sides of the rhombus) is 8 meters, and the altitude (the height) is 5 meters.

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The mean for the first set of numbers is 4. The mean for the second set of numbers is 4. The mean for the third set of numbers is 5. The mean for the fourth set of numbers is 4.11.

To calculate the mean, we sum up all the numbers in the set and divide the sum by the total count of numbers.

For the first set of numbers (5, 5, 5, 4, 4, 2, 2), the sum is 27. There are 7 numbers in the set, so the mean is 27/7 = 4.

For the second set of numbers (7, 5, 1, 2, 8, 3, 3), the sum is 29. There are 7 numbers in the set, so the mean is 29/7 = 4.

For the third set of numbers (8, 4, 2, 8, 7), the sum is 29. There are 5 numbers in the set, so the mean is 29/5 = 5.

For the fourth set of numbers (3, 3, 7, 6, 3, 3, 3, 5, 4), the sum is 37. There are 9 numbers in the set, so the mean is 37/9 = 4.11 (rounded to two decimal places).

Therefore, the mean for the respective sets of numbers are 4, 4, 5, and 4.11.

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The true statements are: - (x × y) × z = x × (y × z) and - (x – y) – z = x – (y – z)

Let's evaluate each statement:

1. X y = y x:

  This statement is generally not true for complex numbers. Multiplication of complex numbers is not commutative, so in most cases, X y is not equal to y x.

2. (x × y) × z = x × (y × z):

  This statement is true. The associative property holds for multiplication of complex numbers. The order of multiplication does not affect the final result.

3. x – y = y – x:

  This statement is generally not true for complex numbers. Subtraction of complex numbers is not commutative, so in most cases, x - y is not equal to y - x.

4. (x y) z = x (y z):

  This statement is true. The associative property holds for multiplication of complex numbers. The order of multiplication does not affect the final result.

5. (x – y) – z = x – (y – z):

  This statement is true. The associative property holds for subtraction of complex numbers. The order of subtraction does not affect the final result.

To summarize, the true statements are:

- (x × y) × z = x × (y × z)

- (x – y) – z = x – (y – z)

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The rational number that falls between 1/13 and 2/13 is 3/13 by using average method

To find a rational number between two fractions, we can use the average method.

To find the average of two fractions a/b and c/d, we add them up and then divide them by 2.

The question is asking what rational number falls between 1/13 and 2/13.

The average of these fractions can be calculated by adding them and dividing them by 2:

1/13 + 2/13 = 3/13 Now, to check whether 3/13 is between 1/13 and 2/13, we can compare the three fractions:

1/13 < 3/13 < 2/13 Therefore, the rational number that falls between 1/13 and 2/13 is 3/13.

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The combined water filtration capacity of filters A and B in Smalltown is 349.55 gallons per minute. Over a period of 70 minutes, these filters can filter approximately 24,467.5 gallons of water, ensuring a clean water supply for the town's residents.

Filter A can filter 179.85 gallons per minute, and filter B can filter 169.7 gallons per minute. To determine the combined filtration capacity, we add the individual capacities of the filters: 179.85 + 169.7 = 349.55 gallons per minute.

Next, we calculate the total amount of water filtered over 70 minutes by multiplying the combined filtration capacity by the duration: 349.55 gallons/minute * 70 minutes = 24,467.5 gallons. Therefore, over the course of 70 minutes, filters A and B can filter approximately 24,467.5 gallons of water, providing a significant volume of clean drinking water for the residents of Smalltown.

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fg(x) is 2x³ - 3x² + 2x - 3.To find fg(x), we need to multiply f(x) and g(x).

The given functions are f(x) = 2x - 3 and g(x) = x² + 1.

We know that (f · g)(x) = f(x) · g(x).

So, (f · g)(x) = (2x - 3)(x² + 1)

(f · g)(x) = 2x³ - 3x² + 2x - 3.

Hence, the value of fg(x) is 2x³ - 3x² + 2x - 3

Given f(x) = 2x - 3 and g(x) = x² + 1

We have to find fg(x) = f(x)g(x)

= (2x - 3)(x² + 1)

We will use the distributive law of multiplication to multiply the given two functions.

(2x - 3)(x² + 1)= 2x(x² + 1) - 3(x² + 1)

Expanding further, we get the following:

2x³ + 2x - 3x² - 3=2x³ - 3x² + 2x - 3

Therefore,

fg(x) = 2x³ - 3x² + 2x - 3.

So, we get the value of fg(x) as 2x³ - 3x² + 2x - 3.

We have found that fg(x) is 2x³ - 3x² + 2x - 3 by multiplying f(x) = 2x - 3 and g(x) = x² + 1.

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The predicate Q(x, y) states that if x is less than y, then x^2 is less than y^2. In part (a), Q(x, y) is false when x = -2 and y = 1 because -2 is less than 1, but (-2)^2 is not less than 1^2.

In part (b), other values that make Q(x, y) false include x = 0 and y = -1, as well as x = 2 and y = 2. In part (c), Q(x, y) is true when x = 3 and y = 8 because 3 is less than 8, and 3^2 is less than 8^2. In part (d), other values that make Q(x, y) true include x = -1 and y = 0, as well as x = -2 and y = -2.

a) In Q(x, y), when x = -2 and y = 1, the statement "If x < y then x^2 < y^2" is false. Although -2 is indeed less than 1, (-2)^2 = 4 is not less than 1^2 = 1.

b) To find values where Q(x, y) is false, we can look for instances where x < y but x^2 is not less than y^2. For example, when x = 0 and y = -1, x < y holds, but (0)^2 = 0 is not less than (-1)^2 = 1. Similarly, when x = 2 and y = 2, x < y is true, but (2)^2 = 4 is not less than (2)^2 = 4.

c) When x = 3 and y = 8, Q(x, y) is true. Since 3 is less than 8, it satisfies the condition x < y, and (3)^2 = 9 is indeed less than (8)^2 = 64.

d) To find values where Q(x, y) is true, we can look for instances where x < y and x^2 < y^2. For example, when x = -1 and y = 0, x < y holds, and (-1)^2 = 1 is less than (0)^2 = 0. Similarly, when x = -2 and y = -2, x < y is true, and (-2)^2 = 4 is less than (-2)^2 = 4.

These examples demonstrate how the truth value of the predicate Q(x, y) depends on the specific values of x and y, and their relationship in terms of magnitude and their respective squares.

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We know that the bottle contains 3 gallons of bleach. More than 250 quarts can be produced from 3 gallons. Let's find out how many quarts there are in a gallon.1 US gallon is equivalent to 4 US quarts.

So 3 gallons equal 12 quarts. Hence, More than 250 quarts can be obtained from 3 gallons, since more than 250 is greater than 12.Therefore, we can find the price per quart by dividing the total cost by the total number of quarts: Price per quart = Total cost ÷ Total number of quarts Since the cost of a 3-gallon bottle of bleach is $15.60, the cost of 1 gallon would be $15.60 ÷ 3 = $5.20.The cost of one quart is $5.20 ÷ 4 = $1.30.Therefore, the price per quart is $1.30.

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When the difference between means is a greater multiple of the MAD (Mean Absolute Deviation), the dot plot tends to show less visual overlap between the data sets.

The MAD is a measure of the spread or variability of a data set. It represents the average distance between each data point and the mean. A larger MAD indicates a larger spread of data points.

When the difference between the means of two data sets is a greater multiple of the MAD, it implies that the means are further apart relative to the spread of the data. This suggests that the data sets are more distinct from each other and have less overlap.

In a dot plot, each data point is represented by a dot along a number line. When the means are further apart relative to the spread of the data, the dots tend to be more separated, indicating less overlap between the two data sets.

On the other hand, if the means are closer together relative to the spread of the data (i.e., the difference between means is a smaller multiple of the MAD), the dot plot would show more visual overlap between the data sets, as the dots would be closer to each other along the number line.

Therefore, when the difference between means is a greater multiple of the MAD, the dot plot generally shows less visual overlap between the data sets.

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The annual population growth rate per thousand animals in this scenario is 130.

In the given population of 1000 alligators, the birthrate is 400 per year. This means that 400 new alligators are born each year. However, there are also factors that decrease the population. Each year, 150 alligators die and 150 leave the population to search for new territory. On the other hand, 30 alligators arrive from other territories to join the population.

To calculate the annual population growth rate per thousand animals, we can subtract the total number of deaths and departures (150 + 150) from the total number of births and arrivals (400 + 30). This gives us a net increase of 130 alligators.

To calculate the growth rate per thousand animals, we divide the net increase (130) by the initial population size (1000) and multiply the result by 1000. This gives us a growth rate of 130/1000 * 1000 = 130.

Therefore, the annual population growth rate per thousand animals in this scenario is 130.

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The radius of a sphere can be found by using the formula for the volume of a sphere and rearranging it to solve for the radius. In this case, the volume of the sphere is given as 2,929 1/3 times pi cm³, and we can solve for the radius using the formula for the volume of a sphere. Therefore, the radius of the sphere is approximately 12.84 cm.

The formula for the volume of a sphere is given as V = (4/3)πr³, where V represents the volume and r represents the radius.

In this case, we are given the volume as 2,929 1/3 times pi cm³. So, we can set up the equation as follows:

2,929 1/3π = (4/3)πr³

To solve for the radius, we can cancel out the common factor of π and simplify the equation:

2,929 1/3 = (4/3)r³

Next, we can isolate the radius by multiplying both sides of the equation by (3/4) and then taking the cube root:

r³ = (2,929 1/3) * (3/4)

r³ = 2,196

Taking the cube root of both sides, we find:

r = ∛2,196 ≈ 12.84 cm

Therefore, the radius of the sphere is approximately 12.84 cm.

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The polygon described in this scenario is a regular pentagon. In the given diagram, the vertices of the pentagon are labeled as P, Q, R, S, and T. The line segment PR is drawn within the pentagon, and it is mentioned that the angle QPR and QRP both measure 20 degrees.

A line segment PR is drawn within the polygon, and the measure of both angles QPR and QRP is 20 degrees. Based on this information, we can determine that the polygon in question is a regular pentagon.

A regular polygon is defined as a polygon where all sides have the same length and all angles have the same measure. In the case of a regular pentagon, it specifically has five sides and five angles. The given information confirms that the angles QPR and QRP both measure 20 degrees, satisfying the criteria for a regular polygon.

By identifying the polygon as a regular pentagon, we can understand its fundamental properties, such as equal side lengths and equal angles. The name "regular" emphasizes the uniformity of the polygon's sides and angles, while "pentagon" specifies that it consists of five sides.

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There's no specific diagram or context mentioned in your question. Thus, I'm giving a general answer to the question. Please provide more information for a specific answer.

The Pythagorean theorem is a fundamental geometric principle that relates the lengths of the sides of a right triangle. It states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides.

So, the given question asks us to find the missing side lengths.

Since we don't have any further information on the given question, let's assume that the given triangle is a right triangle. Let the two given sides of a right triangle be a and b, and the missing side be c.

According to the Pythagorean theorem,

[tex]`a^2 + b^2 = c^2`[/tex]

Thus, [tex]`c = \sqrt(a^2 + b^2)`[/tex]

Here, `sqrt()` is used to represent the square root function. Therefore, we have to take the square root of `a² + b²` to find the length of the missing side.

Answer: [tex]`c = \sqrt(a^2 + b^2)`[/tex]

Leave your answers as radicals in the simplest form.

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Inequalities with absolute value need to be set up differently to solve based on whether it is an "and" situation or an "or" situation.

When dealing with an "and" situation, we use a compound inequality and solve two separate inequalities. For an "or" situation, we set up two separate inequalities and solve them independently.

The approach differs because the absolute value can result in both positive and negative solutions, which must be considered when determining the valid range of solutions.

When encountering an "and" situation in absolute value inequalities, we use a compound inequality to account for both the positive and negative solutions. For example, if we have |x - 3| ≤ 5 and need to find the valid range for x, we set up two separate inequalities: x - 3 ≤ 5 and -(x - 3) ≤ 5. Solving each inequality separately yields the range of valid solutions for x.

On the other hand, when dealing with an "or" situation, we set up two separate inequalities to handle the positive and negative solutions independently. For instance, if we have |x + 2| > 3 and need to find the valid range for x, we set up the inequalities: x + 2 > 3 and -(x + 2) > 3. Solving each inequality separately provides the distinct ranges of valid solutions for x in the given scenario.

The reason for this distinction lies in the absolute value's property of yielding both positive and negative solutions. By setting up separate inequalities for each case, we ensure that all possible valid solutions are considered and captured appropriately.

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Answer:

[tex]\sf z - \dfrac{3}{4}[/tex]

Step-by-step explanation:

      Subtract 3/4 from z.

             [tex]\sf z - \dfrac{3}{4}[/tex]

Answer: To determine the maximum amount Adrian can borrow for a 15-year mortgage with a monthly interest rate of 0.25% and a maximum monthly payment of $4,225, we can use the loan amortization formula:

Loan Amount = Monthly Payment / ((Monthly Interest Rate) * (1 + (1 + Monthly Interest Rate)^(-Number of Months)))

Let's calculate the loan amount:

Monthly Payment = $4,225

Monthly Interest Rate = 0.25% = 0.0025

Number of Months = 15 years * 12 months/year = 180 months

Loan Amount = $4,225 / ((0.0025) * (1 + (1 + 0.0025)^(-180)))

Calculating the loan amount:

Loan Amount ≈ $4,225 / (0.0025 * (1 + (1.0025)^(-180)))

Loan Amount ≈ $4,225 / (0.0025 * (1 + 0.082331))

Loan Amount ≈ $4,225 / (0.0025 * 1.082331)

Loan Amount ≈ $4,225 / 0.002705828275

Loan Amount ≈ $1,560,808.87

Therefore, to the nearest dollar, the maximum amount Adrian can borrow is approximately $1,560,809.

The area under the probability density function to the left of the mean for the standard normal distribution is 0.5.

The standard normal distribution, also known as the Z-distribution, is a bell-shaped distribution with a mean of zero and a standard deviation of one. The area under the curve of a probability density function represents the probability of an event occurring. Since the mean of the standard normal distribution is at the center of the distribution, the area to the left of the mean is symmetrically equal to the area to the right of the mean. Therefore, the area under the probability density function to the left of the mean is 0.5 or 50%. This means that there is a 50% probability of observing a value less than the mean in a standard normal distribution.

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To find the slope of the trend line in a scatterplot, we need to use the formula for slope, which is: Slope = (Change in y)/(Change in x).

The expression that can be simplified to find the slope of the trend line in the scatterplot is the formula for slope. Therefore, the expression that can be simplified to find the slope of the trend line in the scatterplot is:Slope = (Change in y)/(Change in x).

Here, "y" represents the dependent variable, and "x" represents the independent variable in the scatterplot. The slope of the trend line shows how steep the line is.

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The slope of a line perpendicular to the line given by the equation 4x - 6y = -24 is -3/2.

To find the slope of a line perpendicular to the line given by the equation 4x - 6y = -24, we first need to put this equation in slope-intercept form: y = mx + b, where m is the slope and b is the y-intercept.

Rearranging the given equation, we get:

4x - 6y = -24

-6y = -4x - 24

y = (2/3)x + 4

So the slope of the original line is m = 2/3.

For a line that is perpendicular to this line, the slope will be the negative reciprocal of the original slope. That is, if the original slope is m, then the slope of the perpendicular line will be -1/m.

So for the line given by the equation 4x - 6y = -24, the slope of a line perpendicular to it is:

-1/m = -1/(2/3) = -3/2

Therefore, the slope of a line perpendicular to the line given by the equation 4x - 6y = -24 is -3/2.

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The inequality that represents the given sentence is: n - 5 ≥ 32.

In this inequality, "n" represents the number in question. The phrase "the difference of number n and 5" indicates that we are subtracting 5 from n. The phrase "is at least 32" implies that the result of the subtraction must be greater than or equal to 32. Therefore, we write the inequality as n - 5 ≥ 32.

To explain this further, if we want to find a value for n that satisfies the given condition, we need to find a number that, when 5 is subtracted from it, gives us a result of at least 32. By adding 5 to both sides of the inequality, we can rewrite it as n ≥ 37, which means n must be greater than or equal to 37 for the difference between n and 5 to be at least 32.

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The dimensions of one of the identical triangular pieces of the paper airplane are A. 2 cm base, 3 cm height

From the given information, the paper airplane is designed in the shape of a trapezoid when viewed from the top. The trapezoid has a base of 6 centimeters, a height of 3 centimeters, and a top side length of 2 centimeters.

When we divide the trapezoid along the height, we get two congruent triangles. These triangles have the same shape and size, making them identical. The height of the triangle corresponds to the same height as the trapezoid, which is 3 centimeters.

Therefore, the dimensions of one of the identical triangular pieces of the paper airplane are a base of 2 centimeters and a height of 3 centimeters.

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Full question is:

Alexa is designing a paper airplane whose final shape, when viewed from the top or bottom, is a trapezoid. A sketch of her plane, viewed from the top, is shown on the left.

What are the dimensions of one of the identical triangular pieces of the plane?

2 cm base, 3 cm height

3 cm base, 3 cm height

3 cm base, 4 cm height

3 cm base, 6 cm height

The required answer is [tex][4x² + 36x + 85]/(x + 4)².[/tex]

Given [tex]f(x) = x² + 5x + 4[/tex]and g(x) = 1/(x + 4).

We are to find (f ∘ g)(x)

Formula used:

The composition of two functions f(x) and g(x) is given by (f ∘ g)(x) = f(g(x))

To solve the above problem, we substitute g(x) in place of x in f(x).

Hence,[tex](f ∘ g)(x) = f(g(x)) = f(1/(x + 4))f(g(x)) = g(x)² + 5g(x) + 4[/tex]

Putting the value of g(x) we get,

[tex]f(g(x)) = g(x)² + 5g(x) + 4= [1/(x + 4)]² + 5[1/(x + 4)] + 4= [1/(x + 4)][1/(x + 4)] + 5/(x + 4) + 4= (1/(x + 4))(1/(x + 4) + 5/(x + 4) + 4)= [1 + 5(x + 4) + 4(x + 4)²]/(x + 4)²= [4x² + 36x + 85]/(x + 4)²[/tex]

Therefore, [tex](f ∘ g)(x) = [4x² + 36x + 85]/(x + 4)².[/tex]

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They can sell 50 or more T-shirts and 10 or more key chains to meet or exceed their goal.Inequality;10x + 2y ≥ 500.

In mathematics, an inequality is a mathematical statement that describes a relationship between two expressions, indicating that one expression is greater than, less than, or not equal to the other expression. Inequalities are used to compare quantities or values and express their relative magnitudes.

Let x be the number of T-shirts sold and y be the number of key chains sold to meet or exceed the $500 goal.

The total amount of money raised by selling x T-shirts is 10x.

The total amount of money raised by selling y key chains is 2y.The inequality representing the situation is given by;10x + 2y ≥ 500To solve the above inequality for x, we can assume different values of y and then determine the corresponding values of x.

For example;

Let's assume y = 0,10x + 2(0) ≥ 50010x ≥ 500x ≥ 50

The smallest integer x such that x ≥ 50 is x = 50.

To get another point on the line, we can assume y:

= 10,10x + 2(10) ≥ 50010x + 20 ≥ 50010x ≥ 500 - 2010x ≥ 480x ≥ 48

The smallest integer x such that x ≥ 48 is x = 48. Since we want to meet or exceed the goal, the number of T-shirts that the science club can sell is 50 or more while the number of key chains they can sell is 10 or more.

Therefore, the answer to the question is that they can sell 50 or more T-shirts and 10 or more key chains to meet or exceed their goal.Inequality;10x + 2y ≥ 500

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The mean for Mai's data is 8.9167.

To find the mean of the data given by Mai for the past 12 school days, we need to add all the values together and then divide by the total number of values.

Here is the solution: Given data are: 9, 12, 6, 9, 10, 7, 6, 12, 9, 8, 10, 10

To find: The mean for Mai's data

To calculate the mean, we will add up all the values and then divide by the total number of values.

Mean (average) = sum of values / total number of values

Sum of values = 9 + 12 + 6 + 9 + 10 + 7 + 6 + 12 + 9 + 8 + 10 + 10= 107

Total number of values = 12

Therefore, Mean (average) = sum of values / total number of values

= 107 / 12

= 8.9167 (rounded to four decimal places)

Hence, the mean for Mai's data is 8.9167.

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