if alana visits each restaurant that is exactly 3 miles from her work, how many miles will she travel in all

0.625 is a rational number. A rational-number is the number that can be expressed as ratio of two integers with a denominator (not zero).

What is rational and irrational number?

A rational number is a number which can be expressed as the product of two integers with non-zero denominators.In other words, it is a number that can be written in the form of p/q,

where:

p and q -> integers

and q -> not equal to 0.

An irrational number, is just opposite, it cannot be expressed as the ratio of 2 integers.It is a number that cannot be written as a simple fraction, and its decimal expansion continues indefinitely. The most famous examples of irrational numbers are π and √2.

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1   Y is distributed as N(aμ + b, a^2σ^2), as desired.

2  We have shown that under these conditions, E[XY] = E[X]E[Y].

To prove that Y is distributed as N(aμ + b, a^2σ^2), we need to show that the mean and variance of Y match those of a normal distribution with parameters aμ + b and a^2σ^2, respectively.

First, let's find the mean of Y:

E(Y) = E(aX + b) = aE(X) + b = aμ + b

Next, let's find the variance of Y:

Var(Y) = Var(aX + b) = a^2Var(X) = a^2σ^2

Therefore, Y is distributed as N(aμ + b, a^2σ^2), as desired.

We can use the definition of covariance to prove that E[XY] = E[X]E[Y]. By the properties of expected value, we know that:

E[XY] = ∫∫ xy f(x,y) dxdy

where f(x,y) is the joint probability density function of X and Y.

Then, we can use the fact that X and Y are independent to simplify the expression:

E[XY] = ∫∫ xy f(x) f(y) dxdy

= ∫ x f(x) dx ∫ y f(y) dy

= E[X]E[Y]

where f(x) and f(y) are the marginal probability density functions of X and Y, respectively.

Therefore, we have shown that under these conditions, E[XY] = E[X]E[Y].

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The required value of x is 22 degrees for the given figure.

Adjacent angles are a sort of additional angle. Adjacent angles share a common side and vertex, such as a corner point. Their points do not overlap in any manner.

As we know that supplementary angles are defined as when pairing of angles addition to 180° then they are called supplementary angles.:

According to the given figure, it can be written as follows:

2x + 24 + 6x - 20 = 180

8x + 4 = 180

8x = 180 - 4

8x = 176

x = 176/8

x = 22

Therefore, the required value of x is 22 degrees for the given figure.

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The complete question is as follows:

Find the value of x for the below figure.

Profit  after  markdown = $232.96

A computer tore buy a computer system at a cot of ​$436. 80. The selling price was first at $728​, but then the tore advertised a 20% markdown on the system. Answer part a and b

Profit is explained better in terms of cost price and selling price. Cost price is the actual price of the product or commodity and selling price is the amount at which the product is sold. So, if the selling price of the commodity is more than the cost price, then the business has gained its profit. Therefore formula to calculate the profit is;

Profit or Gain = Selling Price – Cost Price

But, when the product is sold at selling price lesser than the cost price, it is termed as loss. Therefore,

Loss = Cost Price – Selling Price

Profit Percentage

Once the profit is calculated we can also derive the percentage profit e have gained in any business by the formula given here;

P% = (P/CP) × 100

Where P is the profit and CP is the cost price

cost price = $436.80

selling price= $728

profit = selling price-cost price

         =$728 - $436.80

         =291.20

markdown price = 291.20*20%

                            =58.24

Therefor profit = 291.20 - 58.24

              Profit           =$232.96

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The above Exponential function has the parent function to be F(x).

The difference between successive terms  is: 6, 18, 54, 162. These are known to be in the powers of 2 and therefore one can say that there is an exponential increase in the parent function.

The new function is said to g(x). Translating down by 4 means that the new y-values are 4 units lower and so the answer is that the f(x)/y-values will be decreased by 4.

Therefore, looking at the above, since g(x)=f(x)-4 one need to know the value of x, the new y-value is lower by 4 from the old one. This is the case only for  (1, 52) since the old function is (1, 13).

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Answer:

You are estimating volume

Step-by-step explanation:

Volume in the metric system equals:ML,L,CL etc

In two words,Litres = volume

Answer:

Slant height = 7.07 ft to nearest hundredth.

Step-by-step explanation:

The slant height = height of one of the triangular sides

Using Pythagoras:

S^2 =  1/2 * 10^2 + 10^2 = 50 ft.

S = √50 = 7.071

The parabola represented by the equation y + 5 = -1/4 (x + 8)^2 opens in the upward direction.

Therefore, the correct answer is:

A. Up

\(\huge{\mathfrak{\colorbox{black}{\textcolor{lime}{I\:hope\:this\:helps\:!\:\:}}}}\)

♥️ \(\large{\textcolor{red}{\underline{\mathcal{SUMIT\:\:ROY\:\:(:\:\:}}}}\)

Answer: 300,000

Step-by-step explanation:

There are two ways to get this answer.

WAY 1

400x800= 320,000 and to get 1 significant figure you round down to 300,000

WAY 2

423x764=323,172 and to get 1 significant figure you round down to

300,000

Main answer:A set of values that shows the exact position of a point in a two-dimensional coordinate plane

supporting answer:  

what is coordinate system?

An arrangement of reference lines or curves used to locate points in space. The Cartesian (after René Descartes) system is the most common two-dimensional system.

body  of the answer:

final answer: by following the above steps we can find the coordinates

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A set of values that shows the exact position of a point in a two-dimensional coordinate plane

What is a coordinate system?

An arrangement of reference lines or curves used to locate points in space. The Cartesian (after René Descartes) system is the most common two-dimensional system.

Navigate to the coordinate graph with the lines X'OX, Y'OY.

Determine which quadrant of the graph contains an ordered pair or a point.

Measure the distance between the point and the x-axis to get the abscissa.

Similarly, to obtain the ordinate value, measure the point's distance from the y-axis.

By following the above steps we can find the coordinates.

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 When a  null hypothesis is not rejected, a type ii error has occurred.

A null hypothesis being a statistical hypothesis, states that no statistical significance can be present in a set of observations. Usually, hypothesis testing is a method used to judge the veracity of a given sample.

Sometimes, it is called just null, or even it has a symbol, viz, \(H_0\).

We consider generally 4 cases:

According to the given question, we have not rejected the null hypothesis.

Thus,  we have two options present, either the type ii error has occurred and null hypothesis is not present, or the null hypothesis is present.

Concluding, when a null hypothesis is accepted, it is possible that a type ii error has occurred.

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The equations that are true regarding the given triangle are: A) w + x + y = 180; B) y + z = w + x + y; E) w + x = z.

Recall the following facts in order to determine the equations that are true:

Therefore, the following equations would be true:

y + z = 180

w + x + y = 180

Therefore, y + x = w + x + y

w + x = z

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The shift toward fewer and larger operations in an industry is called consolidation. The reason for consolidation is to benefit the owners of the business by increasing efficiency and economies of scale, among other things. As the textbook notes, there were 33% fewer fluid-milk processing plants in 2002 than there were in 1992.

Despite the reduction in the number of facilities, milk production increased by 46 percent per plant. The same trend is occurring in a number of other industries. The process of consolidation is a response to a variety of factors, including increased competition, consumer demands, and technological advances.

In some cases, the consolidation of an industry can lead to increased efficiencies and lower prices for consumers. However, the negative aspects of consolidation should also be considered. When a single entity controls a significant portion of an industry,

it can lead to reduced competition and less innovation. It can also lead to higher prices for consumers if the entity has too much power in the marketplace. Furthermore, the consolidation of industries can lead to significant job losses in some areas, as fewer firms mean fewer jobs.

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Answer: All four friends would have to share paying the tip and the total so all of them would pay 1/4 of the bill and 1/4 of the tip

Step-by-step explanation: divide the bill and tip between the 4 friends and you get 1/4 which is how much of the bill and tip that all you and the friends have to pay

Nielsen collects data from two primary sources: set-top boxes/main units in homes and people meters. These sources help gather accurate information about TV viewership

Nielsen collects data from two primary sources: set-top boxes/main units in homes and people meters. These devices track viewership and other data for TV programming and provide valuable insights for advertisers and media companies. Additionally, Nielsen also collects data through diaries, where households manually record their TV viewing habits. All of this data helps to inform important decisions in the media industry.

Nielsen collects data from two primary sources: set-top boxes/main units in homes and people meters. These sources help gather accurate information about TV viewership, allowing for the analysis of audience data in terms of demographics and other relevant factors.

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Answer:

It's at the beginning of x+4, the 2nd symbol of 4x-4, and the beginning of X+1.

Step-by-step explanation:

No explanation for you! Just choose them! It's right!

Answer:

y=-4x-2

Step-by-step explanation:

With the equation provided, you can plug in the 3 or -4 into the x-value, and will get the corresponding y-value.

Hope this helps!

Answer:

b. the two lines are perpendicular

Step-by-step explanation:

carry on learning

Using it's definition, the probabilities are given as follows:

The probability of an event in an experiment is calculated as the number of desired outcomes in the context of the experiment divided by the number of total outcomes in the context of the experiment.

The total number of bulbs in this problem is given as follows:

6 + 9 + 5 = 20.

Six of them are red, hence the probability of a red bulb is:

p = 6/20 = 0.3 = 30%.

Nine of them are blue, hence the probability of a blue bulb is:

p = 9/20 = 0.45 = 45%.

Five of them are green, hence the probability of a green bulb is:

p = 5/20 = 0.25 = 25%.

The probability of a red or blue bulb is:

p = 0.3 + 0.45 = 0.75.

The probability of a blue or green bulb is:

p = 0.45 + 0.25 = 0.6.

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Form the given five quadratics , the one representing the repeated roots is equal to option d. 25x² - 30x + 9 and repeated roots are 3/5 or 3/5.

Quadratics representing repeated roots has discriminant equals to zero.

Standard quadratic equation is:

ax² + bx + c = 0

Discriminant 'D' = b² - 4ac

option a. -x²+ 18x + 81

Discriminant

'D' = 18² - 4(-1)(81)

      = 324 + 324

      = 648

D>0 has distinct roots.

option b. 3x²- 3x - 168

Discriminant

'D' = (-3)² - 4(-3)(-168)

      = 9 - 2016

      = -2007

D< 0 has distinct roots.

option c. x²- 4x -  4

Discriminant

'D' = (-4)² - 4(1)(-4)

      = 16 + 16

      = 32

D>0 has distinct roots.

option d. 25x²- 30x + 9

Discriminant

'D' = (-30)² - 4(25)(9)

      = 900 - 900

      = 0

D = 0 has repeated roots.

Repeated roots are:

x = ( -b ±√D ) / 2a

  = [-(-30)±√0 ]/ 2(25)

  = 30/ 50

  = 3/5.

option e.  x² - 14x + 24

Discriminant

'D' = (-14)² - 4(1)(24)

      = 196 - 96

      = 100

D>0 has distinct roots.

Therefore, the quadratics which represents the repeated roots are given by option d. 25x² - 30x + 9 and its repeated roots are 3/5 or 3/5.

The above question is incomplete, the complete question is:

One of the five quadratics below has a repeated root. (There other four have distinct roots.) What is the repeated root?

a. -x²+ 18x + 81

b. 3x² - 3x - 168

c. x² - 4x - 4

d. 25x² - 30x + 9

e. x² - 14x + 24

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The given statement "For any sampled population, the population of all sample means is approximately normally distributed" is true. This is a result of the Central Limit Theorem, which states that when sample sizes are large enough, the means of all samples will be approximately normally distributed.

A sample is a smaller portion of the population that has been taken to draw conclusions about the characteristics of the population as a whole. The sample needs to be representative of the population for the data analysis to be valid.

A sample mean is a statistical analysis in which the sum of all data points in a sample is divided by the number of observations. It gives an idea of the average value of the data points in the sample population.

For any sampled population, the population of all sample means is approximately normally distributed. The central limit theorem states that when the sample size is sufficiently large, the distribution of the sample means will be approximately normal, regardless of the underlying distribution of the population.

The central limit theorem is an important concept in inferential statistics because it provides a theoretical foundation for the use of statistical inference methods to draw conclusions about population parameters based on sample statistics.

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Answer:

E) y= 2x-11

Step-by-step explanation:

as we know the equation of line parallel to

y =2x-7 or, 2x-y-7=0 is 2x-y+k=0

as the line passes through the point (5,-1)

substituting the value of x and y in equation 2x-y+k=0

we get,

2×5-(-1)+k=0

or, 10+1+k=0

or, k=-11

hence putting the value of k in ep 2x-y+k=0

we get 2x-y-11=0

or, y=2x-11

To solve the inequalities -2x + 4 < 8 and 3x + 4 ≤ -5, we will solve them individually and then represent the solutions on a number line.

For the first inequality, -2x + 4 < 8, we will isolate x:

-2x + 4 - 4 < 8 - 4

-2x < 4

Dividing both sides by -2 (remembering to reverse the inequality when multiplying/dividing by a negative number):

x > -2

For the second inequality, 3x + 4 ≤ -5, we isolate x:

3x + 4 - 4 ≤ -5 - 4

3x ≤ -9

Dividing both sides by 3:

x ≤ -3

Now we represent the solutions on a number line. We mark -2 with an open circle (since x > -2), and -3 with a closed circle (since x can be equal to -3). Then we shade the region to the right of -2 and include -3 to represent the solutions.

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a) In the interval 2π ≤ θ ≤ 4π, the angle θ that satisfies sin θ = sin(4π/3) is θ = -2π/3.

b) In the interval -2π ≤ θ ≤ 0, the angle θ that satisfies sin θ = sin(4π/3) is also θ = -2π/3.

To find an angle θ within the given interval for which sin θ = sin(4π/3), we can use the periodic nature of the sine function.

a) For the interval 2π ≤ θ ≤ 4π:

We know that the sine function has a period of 2π, which means that sin θ repeats itself every 2π radians. To find an angle within the given interval with the same sine value as sin(4π/3), we need to find an angle that is equivalent to 4π/3 within the interval.

Let's calculate the equivalent angle within the interval:

4π/3 = (4π/3) - 2π = -2π/3

So, within the interval 2π ≤ θ ≤ 4π, the angle θ that satisfies sin θ = sin(4π/3) is θ = -2π/3.

To illustrate this solution on a graph, we can plot the sine function from 2π to 4π and mark the angle -2π/3 on the x-axis.

b) For the interval -2π ≤ θ ≤ 0:

Similarly, within this interval, we can find the equivalent angle to 4π/3 by subtracting multiples of 2π from it:

4π/3 = (4π/3) - 2π = -2π/3

Within the interval -2π ≤ θ ≤ 0, the angle θ that satisfies sin θ = sin(4π/3) is also θ = -2π/3.

To illustrate this solution on a graph, we can plot the sine function from -2π to 0 and mark the angle -2π/3 on the x-axis.

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Answer:

Step-by-step explanation:

et A=120°

and B=5Pi /6

Pi radians ---------> 180°

  x<----------------------- 120°

so x =120 x Pi / 180 = 12 xPi / 18 = 2 Pi/3

so A = 2Pi / 3 radian  

let 's compare A and B

we know that 5Pi /6 = 0.8 Pi and  2P/3= 0.6 Pi, 0.8>0.6,  

finally 5Pi /6 > 2P/3

so B>A

Answer:

El área de un círculo se puede calcular utilizando la fórmula A = πr², donde r es el radio del círculo. Como el diámetro del círculo es de 20 cm, el radio será la mitad de ese valor, es decir, 10 cm. Por lo tanto, el área del círculo sería:

A = πr²

A = π(10 cm)²

A = π(100 cm²)

Aproximadamente, el área es de 314,16 cm².