approximately what year did printed newsletters begin circulating in europe?1450145016001600185018501200

Neglecting friction, a similar ride with 12 passengers aboard would take 6 minutes.

The time it takes for a roller coaster ride is directly proportional to the mass of the passengers. If we assume that each passenger has the same mass, then the time it takes for the ride is proportional to the number of passengers.

Let T1 be the time for the ride with 6 passengers, and T2 be the time for the ride with 12 passengers. Then, we have:

T2 = (12/6) * T1

Simplifying this expression, we get:

T2 = 2 * T1

We are given that T1 = 3 minutes, so we can substitute this value into the equation above to find T2:

T2 = 2 * 3 minutes = 6 minutes

Therefore, a similar roller coaster ride with 12 passengers aboard would take 6 minutes, as opposed to the 3 minutes it takes with 6 passengers aboard. The answer is 6 minutes.

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The relation does not relate y as a function of x because point (2,2) and (3,2) have the same y value. Hence, option 2 is the correct answer.

A relation between a collection of inputs and outputs is known as a function. A function is, to put it simply, a relationship between inputs in which each input is connected to precisely one output. Each function has a range, codomain, and domain. The usual way to refer to a function is as f(x), where x is the input. A function is typically represented as y = f. (x).

We know that a function is a relationship between inputs where each input is related to exactly one output.

In the given graph (2,2) and (3,2) have the same y value that is two inputs have same output.

Hence, the relation does not relate y as a function of x because point (2,2) and (3,2) have the same y value and option 2 is the correct answer.

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The hourly rate that the batches of cookies were made is given as follows:

4.85 batches per hour.

The hourly rate is obtained applying the proportions in the context of the problem.

A proportion is applied as the rate is obtained dividing the total production by the time in hours.

The parameters for this problem are given as follows:

Hence the rate is given as follows:

40/8.25 = 4.85 batches per hour.

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The arc length and the sector area are l = 0.25πr and A = (πr²) / 8.

The sector is essentially a section of a circle, and it may be described using the following three criteria:

The area of a disc that is surrounded by two radii and an arc is known as a circular sector.

The circle is divided into the Main Sector and the Minor Sector by a sector.

The region with a lesser extent is referred to as the Minor Sector, whereas the territory with a larger area is referred to as the Major Sector.

The arc length is given as:

l = α/360 (2πr)

The angle is 45 degrees thus,

l = (45/360)(2πr)

l = 0.25πr

The sector area is given as:

A = α/360 (πr²)

A = 45/360 (πr²)

A = (πr²) / 8

Hence, the arc length and the sector area are l = 0.25πr and A = (πr²) / 8.

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By using only the positive exponents , the answer of the expression (2x⁻²y³/3xy⁻⁴) is  (2y⁷)/(3x³)  .

The Exponents, are defined as a shorthand way of representing the repeated multiplication of a base number by itself. The exponent is the small raised number that indicates how many times the base number is multiplied by itself.

For example, in the expression 2⁴, the base number is 2 and the exponent is 4,

We use the law of exponents to simplify the expression :

the expression is : (2x⁻²y³/3xy⁻⁴) ;

by using the rule that : a⁻ⁿ = 1/aⁿ  ;

we get ;

⇒ (2y³y⁴)/(3xx²) ;

On adding the exponents having the same base ,

we get ;

⇒ (2y⁷)/(3x³)  ;

Therefore , the simplified value of (2x⁻²y³/3xy⁻⁴) is (2y⁷)/(3x³) .

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The given question is incomplete , the complete question is

Write answer only using positive exponents , (2x⁻²y³/3xy⁻⁴) .

The correct answer is C. The Mode.

Data is the collection of data term that is organized and formatted in a specific way it's typically contains fact observation or statistics that are collected through a process of measurement or research data set can be used to answer question and help make informed decision they can be used in a variety of ways such as to identify trends on cover patterns and make prediction.

This measure of centre is most meaningful when the data is qualitative because it shows the value that appears most frequently in the data set. The mode can be used to identify the most popular item or most commonly occurring outcome. It is the only measure of centre that can be used for qualitative data, as the other measures (mean, median, and range) require numerical data.

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The Solution using two methods are 323, .291, the correct option is B`.

Probability of an event is a measurement of how likely an event can occur as an outcome of a random experiment.

Probability ranges from 0 to 1, both inclusive. Events whose probability is closer to 0 are rarer to occur than those whose probabilities are closer to 1 (relatively).

When converted to percentage, we just need to multiply its decimal representation by 100. In percentage form, the probability ranges from 0% to 100%.

Given;

Frank is a champion fish charmer who can charm fish with .62 probability of success

He attempts to charm 100 fish, what's the probability he'll charm

between 60 and 80 inclusive

Now, probability out of 100

=62

This is between 60 and 80

So, 323

Therefore, the probability will be 323 and .291

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The constant of proportionality for this relationship is the circumference of the wheel.

A proportional relationship between two variables means that the ratio of the two variables is constant. In other words, if the independent variable (time in this case) increases, the dependent variable (the amount of money Steven charges) will increase proportionally.

The distance a wheel can travel is proportional to its radius.

wheel radius(in.)      distance in 4 revolutions (in.)

4                                    32π

3.5                                 28π

0.25                               2π

The distance a wheel can travel in one revolution is equal to the circumference of the wheel. So, if we know the radius of the wheel, we can calculate its circumference using the formula:

circumference = 2π × radius

Then, we can use the circumference to find the distance the wheel can travel in a given number of revolutions by multiplying the circumference by the number of revolutions. In the table provided, we can see that for each wheel radius, the distance traveled in 4 revolutions is a multiple of the circumference of the wheel, which confirms that the constant of proportionality is the circumference.

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The area of a four-sided regular pyramid, given the base edge and the side edge is 340 cm ² .

The area of a four-sided regular pyramid can be found by the formula :

= Area of base + 1 / 2 x perimeter of base x side edge

Area of base :

= 10 x 10

= 100 cm ²

Perimeter of base ;

= 10 + 10 + 10 + 10

= 40 cm

The area of the four-sided regular pyramid is;

= 100 + ( 1 / 2 x 40 x 12 )

= 340 cm ²

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To determine whether the errors from the linear regression model are from a normal distribution, examine the normal quantile plot of the residuals.

Calculating the regression equation is the first step in a straightforward linear regression model. The link between the explanatory variable (x) and the response variable is modelled using this equation (y). A linear function of the explanatory variable, an intercept term, and an error term make up the regression equation. The errors or residuals (e), which indicate the difference between the observed and expected values of the response variable, are calculated as the following step. To evaluate the regression model's accuracy, the residuals are crucial.  The residuals are then plotted using a normal quantile to see whether it is acceptable to believe that the errors are derived from a normal distribution. Because linear regression models presume that the errors are regularly distributed, this is significant. The residuals' normal quantile plot shows the distribution of the mistakes graphically, making it simpler to determine whether the errors follow a normal distribution. The linear regression model might not be the optimal one to employ if the errors do not follow a normal distribution.

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Answer:

one fifth would be espressos so 3

Step-by-step explanation:

Answer:it guarantees that people can all read and solve a problem in the same way.

Step-by-step explanation:

In linear equation, 242 can the population increase without the city going over budget if they have $5 million for a new library building .

Which equation is linear equation?

An algebraic equation with simply a constant and a first-order (linear) term, such as y=mx+b, where m is the slope and b is the y-intercept, is known as a linear equation.

                                    The variables in the previous sentence, y and x, are referred to as a "linear equation with two variables" at times.

      Substitute the value of s into formula for P -

                   P = ( 3(5-2)) 5/2 - 1

                    = (3(3))5/2 - 1

                  P = 95/2 - 1

                 P = 243 - 1

                     = 242

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The equivalent expression by combining like terms is 0.57b

Equivalent expressions are expressions that work the same even though they look different. If two algebraic expressions are equivalent, then the two expressions have the same value when we substitute the same value(s) for the variable(s).

In order to write an equivalent expression by combining like terms, subtract 0.43b from b (Note: b = 1b). That is:

b-0.43b = 0.57b

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the first choice is the right answer

please check my working for guidance

The slope between the points is same, hence the points lie on the same line. The point (2, 3) does not lie on the graph of y = 3x - 4.

A line's steepness and direction are measured by the line's slope. Without actually using a compass, determining the slope of lines in a coordinate plane can assist in forecasting whether the lines are parallel, perpendicular, or none at all.

Any two different points on a line can be used to calculate the slope of any line. The ratio of "vertical change" to "horizontal change" between two different locations on a line is calculated using the slope of a line formula.

The given points are, (1,3) (4,2) (-2,4):

Calculate the slope of the line formed by the points.

The slope of the line is given by:

m = (y2 - y1)/(x2 - x1)

For (1,3) (4,2):

m = (2 - 3) / (4 - 1) = -1/3

For (4,2) (-2,4):

m = (4 - 2) / (-2 - 4) = 2/ -6 = -1/3

The slope between the points is same, hence the points lie on the same line.

The equation of the graph is:

y = 3x - 4

The given point is (2, 3):

Substituting the point in the equation:

3 = 3(2) - 4

3 = 6 - 4

3 = 2

False.

Hence, the point (2, 3) does not lie on the graph of y = 3x - 4.

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The null hypothesis assumes that the proportion of college students who believe in extraterrestrial life is the same or lower than the general population

The appropriate null and alternative hypothesis that tests whether the proportion of college students who believe in extraterrestrial life is greater than the general population can be expressed as follows:

Null hypothesis: The proportion of college students who believe in extraterrestrial life is equal to or less than the general population, or

H0: p <= 0.47

Alternative hypothesis: The proportion of college students who believe in extraterrestrial life is greater than the general population, or

Ha: p > 0.47

where p is the true proportion of college students who believe in extraterrestrial life.

In other words, the null hypothesis assumes that the proportion of college students who believe in extraterrestrial life is the same or lower than the general population (i.e., there is no difference between the two populations), while the alternative hypothesis assumes that the proportion of college students who believe in extraterrestrial life is higher than the general population.

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Answer:

0.238

Step-by-step explanation:

The table to explain the equation will be:

x (minutes) y (altitude, in feet) Worked-out equation

0                          300                 -10x + 300 = 300

5                              250                   -10x + 300 = 250

8                         220                         -10x + 300 = 220

10                         200                   -10x + 300 = 200    

30                     0                         -10x + 300 = -0

An equation simply has to do with the statement that illustrates the variables given. In this case, it is vital to note that two or more components are considered in order to be able to describe the scenario

I used the equation y = -10x + 300 to find the altitude of the airplane for each x value.

The altitude after 5 minutes is 250 feet and 0 after 30 minutes.

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Answer:

(6 x 1.5 + 4.9) x 4 = 55.6

Step-by-step explanation:

If there are 450 grams of element and half life is 8 minutes, then it will take 28.83 minutes the element to decay to 37 grams

Half life of radio active element = 8 minutes

Initial quantity of radio active element = 450 gram

Final quantity of radio active element = 37 grams

y = a(0.5)^(t/h)

Substitute the values in the equation

37 = 450 (0.5)^(t/8)

Move 37 to left hand side of the equation

37 / 450 = 0.5^(t/8)

Convert the terms to logarithm

t/8 = [tex]log_{0.5}\frac{37}{450}[/tex]

t/8 = 3.60

t = 8 × 3.60

Multiply the numbers

t = 28.83 minutes
Therefore, the it will take 28.83 minutes to decay to 37 grams

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According to the information, the area of this quadrilateral, trapezoid is 42 cm.

To calculate the area of the figure we must first graph it. Once we have found its shape we must identify what type of quadrilateral it is, in this case we can affirm that it is a right trapezoid.

On the other hand, to calculate its area we must divide the figure in two, one part would be the quadrilateral and the other the triangle. So we need to find the area of both shapes and then add them.

So the total area would be 42cm²

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1)

it took

25 min : 35 mile

?? min : 70 mile

cross multiply we get 50 minutes

25 x 70 then divide by 35

2) we used:

4 cups : 90 batches

? cups. : 112.5 batches

cross multiply we get: 5 cups

112.5 x 4 then divide by 90

If the sum of three successive integers even numbers is 6000, then their values must be 1998, 2000, and 2002.

In addition tangere is the root of the Latin word integer, which meaning "whole" and "untouched." The word "entire" is derived from the French word entier, which also means entire and integer. The expression was once used to describe a multiple of 1 or the whole part of a mixed number. The definition of the term was given as the collection of all positive integers, which is the same as the collection of all natural numbers. The concept of integer was expanded to include negative integers as the significance of those numbers came to be realized through time. For instance, in his 1765 book Elements of Algebra, Leonhard Euler stated that integers might contain both positive and negative values. Up until about the middle of the 20th century, most European mathematicians ignored negative numbers.

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The statement is true. A confidence interval is a range of values that is likely to contain the true value of the parameter with a certain degree of confidence.

In this case, we are interested in the odds ratio between MI (yes, no) and treatment (placebo, aspirin).

If the 95% confidence interval for the odds ratio between MI and placebo is (1.44, 2.33), this means that we can be 95% confident that the true odds ratio falls between these two values. This implies that the odds of having an MI are between 1.44 and 2.33 times greater for those taking the placebo compared to those taking aspirin.

When we switch the rows so that aspirin is in the first row, we need to take the reciprocal of the upper and lower bounds of the confidence interval to get the new interval. This is because the odds ratio is calculated as the odds of MI for one group divided by the odds of MI for the other group, and switching the groups changes the ratio.

So, if we take the reciprocal of the lower and upper bounds of the original interval, we get:

1/2.33 and 1/1.44

which is the new 95% confidence interval for the odds ratio when aspirin is in the first row. Therefore, the statement is true.

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Answer:

11 inches

Step-by-step explanation:

If its cubic inches, we just need to cube root it

Plug it into the calculator and you get a number that rounds up to 11

Reasoning is because it is cubic, so to find the distance which is a normal number, you need to cube root it

Answer:

y- intercept = 4

Step-by-step explanation:

the y- intercept is the value of y on the y- axis where the line crosses.

the line crosses the y- axis at 4

then y- intercept = 4

There were 297 children and 185 adults who swam that day. Let x be the number of children and y be the number of adults who swam that day.

According to the problem, we know that:

x + y = 482 ---(1) (total number of people who swam)
1.5x + 2y = 815.5 ---(2) (total revenue generated)

To solve for x and y, we can use any method of solving a system of linear equations, such as substitution or elimination. Here's how to solve using the substitution method:

From equation (1), we can write:

x = 482 - y

Substituting this into equation (2), we get:

1.5(482 - y) + 2y = 815.5

Simplifying and solving for y, we find:

723 - 1.5y + 2y = 815.5

0.5y = 92.5

y = 185

Substituting this value of y back into equation (1), we find:

x + 185 = 482

x = 297

Therefore, there were 297 children and 185 adults who swam that day.

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Answer: D

Step-by-step explanation: I can't really see everything well but I think it is D

The volume of the right circular cylinder with a radius of 7 and a height of 1.5 is 110.25 cubic units.

The volume of a right circular cylinder can be calculated using the formula:

V = π * r² * h

Where r is the radius and h is the height of the cylinder.

Plugging in the values for r and h, we get:

V = π * 7² * 1.5

V = π * 49 * 1.5

V = 73.5 * 1.5

Therefore, V = 110.25

So the volume of the right circular cylinder with a radius of 7 and a height of 1.5 is 110.25 cubic units.

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