Write an equation to represent the relationship between books and dollars[tex]\left[\begin{array}{ccc}1&5\\2&10\\3&15\end{array}\right][/tex]

Answers

Answer 1

We have the equation to represent the relationship between books and dollars, i.e. y = 5x

What is the slope?

The slοpe οf a line is a measure οf its steepness. Mathematically, the slοpe is calculated as "rise οver run" (change in y divided by change in x).

Assuming that the first cοlumn οf the matrix represents the number οf bοοks and the secοnd cοlumn represents the cοrrespοnding cοst in dοllars, we can write a linear equatiοn tο represent the relatiοnship between bοοks and dοllars.

Here, When the number of books is 1, the price 5

Same, When the number of books is 2, the price 10

let the number of books be x and price of books be y

Now, the linear equation with two variables forms = y = mx

5 = m1

m = 5/1 = 5

Lets check again

10 = m2

m = 10/2 = 5

Therefore

y = 5x

Thus, m = 5 where m is a constants, And we have the equation to represent the relationship between books and dollars, i.e. y = 5x

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Related Questions

Pls help There is a 20% chance that a customer walking into a store will make a purchase. A computer was used to generate 5 sets of random numbers from 0 to 9, where the numbers 0 and 1 represent a customer who walks in and makes a purchase.
A two column table with title Customer Purchases is shown. The first column is labeled Trial and the second column is labeled Numbers Generated.

What is the experimental probability that at least one of the first three customers that walks into the store will make a purchase?

A) 60%

B) 13%

C) 40%

D) 22%

Answers

As a result, the experimental likelihood of at least one of the first three probability customers that enter into the business making a purchase is 48.8%, which is close to option D) 22%.

What is probability?

Probabilistic theory is a branch of mathematics that calculates the chance of an event or a claim being true. A risk is a number between 0 and 1, where 1 represents certainty and a probability of about 0 shows how likely an event appears to be to occur. Probability is a mathematical term for the likelihood that a certain event will occur. Probabilities can also be expressed as numbers ranging from 0 to 1, or as percentages ranging from 0% to 100%. The proportion of occurrences among equally likely choices that result in a certain event in compared to all possible outcomes.

We may utilise the complement rule to answer this problem, which states that the likelihood of an event occurring is equal to one minus the chance of the event not occurring.

The likelihood of a client making a purchase is 1 - 0.2 = 0.8, while the probability of a customer not making a purchase is 1 - 0.2 = 0.8. As a result, the likelihood that none of the first three clients will make a transaction is:

0.8 x 0.8 x 0.8 = 0.512

1 - 0.512 = 0.488

As a result, the experimental likelihood of at least one of the first three customers that enter into the business making a purchase is 48.8%, which is close to option D) 22%.

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I need help! Please include an explanation.

Answers

2/7 is the probability that the number is odd.

What is probability?

The likelihood of an event occurring is defined by probability.

In real life, there are many times when we need to predict what will happen.

The outcome of events may or may not be known to us.

I say that if this happens, the event may or may not occur.

In general, probability has many great uses in games, probability-based economics, and in this burgeoning field of artificial intelligence.

A probability formula can be used to determine the probability of occurrence by simply dividing the favorable number of possibilities by the total number of possible outcomes

According to our question-

total numbers= 14

total odd numbers=8

p(E)= 8/14-1/14

7/14

2/7

Hence, 2/7 is the probability that the number is odd.

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a sample of n=5 scores has a mean of m=12. what is x for this sample

Answers

The sum of x for a sample can be found by multiplying the mean of the sample by the sample size is 60.

To find the sum of x for a sample, we need to add up all of the individual scores in the sample. However, the problem statement does not provide the individual scores, only the mean (m) and the sample size (n).

Fortunately, there is a formula that relates the mean, sample size, and sum of the individual scores:

sum of x = n * mean

This formula tells us that if we know the mean and the sample size, we can find the sum of the individual scores by multiplying the mean by the sample size.

In this case, the sample size is n=5 and the mean is m=12, so we can use the formula to find the sum of x:

sum of x = 5 * 12 = 60

Therefore, the sum of x for this sample is 60.

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A straight line passes through the points
(2, 13) and (10, 37)
What is the y-intercept of the line?
Give your answer as an integer or as a fraction in its simplest form.

Answers

Accοrding tο the expοnential decay mοdel, the bοnes were apprοximately 6020 years οld at the time they were discοvered.

What is expοnential Decay?

The general fοrmula fοr expοnential decay is:

N = N₀

where:

N is the amοunt οf the substance remaining after time t

N₀ is the initial amοunt οf the substance

k is the decay cοnstant

t is time

The decay οf carbοn-14 fοllοws an expοnential decay mοdel. The half-life οf carbοn-14 is 5750 years, which means that the decay cοnstant is:

k = ln(2) / half-life

k = ln(2) / 5750

k ≈ 0.000120968

Let N₀ be the initial amοunt οf carbοn-14 in the bοnes, and let N be the amοunt οf carbοn-14 remaining after the bοnes have lοst 51.6% οf their carbοn-14. Then we have:

N/N₀ = 1 - 0.516

N/N₀ = 0.484

Taking the natural lοgarithm οf bοth sides, we get:

ln(N/N₀) = ln(0.484)

Using the fοrmula fοr expοnential decay, we can express N/N₀ in terms οf the decay cοnstant and time:

N/N₀ =

Substituting this intο the previοus equatiοn, we get:

ln(

) = ln(0.484)

Simplifying, we get:

-kt = ln(0.484)

Sοlving fοr t, we get:

t = -ln(0.484) / k

Substituting the value οf k that we fοund earlier, we get:

t ≈ 6019.79 years

Therefοre, the bοnes were apprοximately 6020 years οld at the time they were discοvered.

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Please help. Rational numbers A B C D

Answers

The equivalent expression would be [tex]$\frac{1}{\sqrt[7]{12^4}}$[/tex].

What is an expression?

In mathematics, an expression is a combination of numbers, variables, and mathematical operations such as addition, subtraction, multiplication, division, and exponentiation. It may also include functions, parentheses, brackets, and other symbols.

We know that [tex]$12^{-\frac{4}{7}}$[/tex] means the reciprocal of the seventh root of 12raised to the fourth power. Therefore, we can simplify this expression as follows:

[tex]$12^{-\frac{4}{7}}=\frac{1}{\sqrt[7]{12^4}}$[/tex]

Therefore, the expression that is equivalent to [tex]$12^{-\frac{4}{7}}$[/tex] is:

[tex]$\frac{1}{\sqrt[7]{12^4}}$[/tex]

So, the correct answer is:

[tex]$\frac{1}{\sqrt[7]{12^4}}$[/tex]

Hence, the equivalent expression would be [tex]$\frac{1}{\sqrt[7]{12^4}}$[/tex].

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The expression that is equivalent to [tex]12^{(-\frac{4}{7}) }[/tex] is [tex]\frac{1}{\sqrt[7]{12^{4} } }[/tex]

Describe Exponential Expressions?

An exponential expression is a mathematical expression in which a number (called the base) is raised to a power (called the exponent or index). The general form of an exponential expression is:

Where a is the base, x is the exponent or index, and the result of the expression is a multiplied by itself x times. Exponential expressions can also be written in different forms, such as:

aⁿ: This represents the product of n copies of the base a, where n is a positive integer.

a⁻ⁿ: This represents the reciprocal of the product of n copies of the base a, where n is a positive integer.

a^(1/n): This represents the nth root of the base a, where n is a positive integer.

Exponential expressions have many important properties and applications in mathematics, science, engineering, and finance. Some of these properties include:

The product of exponential expressions with the same base is equal to the base raised to the sum of their exponents.

The quotient of exponential expressions with the same base is equal to the base raised to the difference of their exponents.

The power of an exponential expression is equal to the base raised to the product of the exponent and the power.

Exponential functions have a special property called exponential growth or decay, which describes how quickly a quantity increases or decreases over time.

The expression that is equivalent to [tex]12^{(-\frac{4}{7}) }[/tex] is [tex]\frac{1}{\sqrt[7]{12^{4} } }[/tex]

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Find the area of the figure

Answers

The area of the given figure is 173.25 in².

What is area?

Area is the measure of a region's size on a surface.

Let's consider this figure as a rectangle with few empty spaces.

Length of the rectangle is 13.5 in, width of the rectangle is 16.5 in (5.5 +5.5+5.5) .

So area of rectangle is = length x breadth

= 13.5 x 16.5 = 222.75 in²

Now for the empty spaces, consider is as rectangle

length = 13.5 - 9 = 4.5 in

breadth = 5.5 in

Area of small rectangle = 4.5 x 5.5 = 24.75 in²

There are two such rectangles so 2 x 24.75 = 49.5 in²

Now for the area of the given figure,

Area of Rectangle - Area of two small rectangle

=222.75 - 49.5

Area of figure = 173.25 in²

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For all parts of this question, use function y+2=3(x+4) part A : complete the x-y table :

Answers

By evaluating the linear function we will get the complete table:

x          y

-2        4

0         10

2         16

4         22

How to compete the x-y table?

Here we have the linear function:

y + 2 = 3*(x + 4)

And we want to use this to complete the given table (check the image at the end of the answer).

To get that, we need to evaluate the function in the given values of x.

We can rewrite:

y  = 3x + 3*4 - 2

y = 3x + 10

if x = -2

y = 3*-2 + 10 = 4

if x = 0

y = 3*0 + 10  =10

if x = 2

y = 3*2 + 10 = 16

if x = 4

y = 3*4 + 10 = 22

Then the complete table is:

x          y

-2        4

0         10

2         16

4         22

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I need help please!!!

Answers

The expression x + y is used to determine the least value of x and y. This expression can be written mathematically as x + y = min(x, y).

To calculate this value, we need to determine which of the two values is the smallest and add it to the other. For example, if x = 5 and y = 10, the least value of x + y would be 5 + 10 = 15. Similarly, if x = 10 and y = 5, the least value of x + y would still be 15. On the other hand, the expression x y is used to determine the closest value to zero of x and y. This expression can be written mathematically as x y = abs(x) + abs(y). To calculate this value, we need to determine the absolute value of both of the values, add them together and find the closest value to zero. For example, if x = 5 and y = -10, the closest value to zero of x y would be 5 + 10 = 15. Similarly, if x = 10 and y = -5, the closest value to zero of x y would still be 15. Finally, the expression x + y is used to determine the greatest value of x and y. This expression can be written mathematically as x + y = max(x, y). To calculate this value, we need to determine which of the two values is the largest and add it to the other. For example, if x = 5 and y = 10, the greatest value of x + y would be 5 + 10 = 15. Similarly, if x = 10 and y = 5, the greatest value of x + y would still be 15.

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Kareem se postuló para presidente del club de ajedrez y recibió 48 votos. Hay un total de 60 miembros en el club. ¿Qué porcentaje de los miembros del club votó por Kareem?

Answers

Kareem thus garnered 80% of the vote as the number of votes Kareem received by the total number of club members.

what is percentage ?

A number can be expressed as a fraction of 100 using a percentage. "%" is used to represent it. 50%, for instance, is 50 out of 100, or 0.5 in decimal form. A typical way to describe relative frequency, probability, or amount is by percentages. Also, they are employed in computations concerning taxation, interest rates, discounts, and other statistical and financial considerations.

given

We must divide the number of votes Kareem received by the total number of club members, multiply by 100, and then get the proportion of club members that voted for Kareem:

(Kareem votes / total members) x 100 = %

% equals (48/60) times 100.

% Equals 0.8 times 100

% equals 80

Kareem thus garnered 80% of the vote as the number of votes Kareem received by the total number of club members.

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The complete question is:- Kareem ran for chess club president and received 48 votes. There are a total of 60 members in the club. What percentage of the club members voted for Kareem?

If f(x) = 3x + 2 and g(x) = x2 + 1 , which expression

Answers

jkjcavsjhffvjhsdvfhnsdfnabvfnavshdvanvhgasvFHNVJSDhvfjhsevbfhsbe

The answer of the given question based on the equation the answer is  the expression equivalent to (f×g)(x) is 3x³ + 2x² + 3x + 2.

What is Expression?

In mathematics, an expression is  combination of numbers, symbols, and operators (such as +, -, x, ÷) that represents  mathematical relationship or quantity. Expressions can be simple, such as 2 + 3, or more complex, such as (x + y)(x - y)

The expression equivalent to (f×g)(x) is:

(f×g)(x) = f(x) × g(x)

= (3x + 2) × (x² + 1)

Expanding the product, we get:

= 3x × x² +3x +2x² +2

= 3x³+2x²+3x +2

Therefore, the expression equivalent to (f ×g)(x) is 3x³+ 2x² + 3x + 2.

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The complete question is :

If f(x) = 3x + 2 and g(x) = x2 + 1 which expression is equivalent to (f x g)(x) Summary: If f(x) = 3x + 2 and g(x) = x2 + 1, the expression equivalent to (f x g)(x) is 3(x2 + 1) + 2.

Question 4(Multiple Choice Worth 5 points)
(Experimental Probability MC)

A bag is filled with an equal number of red, yellow, green, blue, and purple socks. The theoretical probability of a child drawing 2 blue socks from the bag with replacement is one fifth. If the experiment is repeated 125 times, what is a reasonable prediction of the number of times he will select 2 blue socks?

one fifth
5
25
62

Answers

So, it is safe to assume that the child will choose two blue socks 25 times in total. Option C, or 25, is the correct response.

what is probability ?

The study of events and their propensity to occur is the focus of the mathematical field of probability. It is a scale between 0 and 1, where 0 means the event is unlikely to happen and 1 means it will definitely happen, that expresses the likelihood of an event happening.  In numerous disciplines, including statistics, economics, engineering, physics, and computer science, probability is utilized to generate predictions, analyze data, and come to wise judgments.

given

One fifth, or 1/5, is the likelihood of drawing two blue socks with a replacement from the bag.

The number of times two blue socks will be drawn if the experiment is run 125 times is predicted to be nearly equal to the product of the probability and the number of trials.

Value anticipated equals likelihood times the number of trials

Estimated frequency of drawing two blue socks: (1/5) x 125 = 25

So, it is safe to assume that the child will choose two blue socks 25 times in total. Option C, or 25, is the correct response.

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Which step is needed to finish the equivalent expression

Answers

Option A : The step needed to finish the equivalent expression is to use the addition property to simplify the terms inside the parentheses by combining like terms.

The step needed to finish the equivalent expression is to simplify the terms inside the parentheses using the addition property of addition and subtraction.

The given expression is:

5m - m + 7 - m - 4

We start by adding the two positive m terms and subtracting the negative m term. This gives us:

5m - m - m + 7 - 4

Simplifying the expression within the parentheses, we get:

5m - 2m + 7 - 4

Now we can combine the two like terms 5m and -2m by adding them together to get 3m:

3m + 7 - 4

Finally, we can simplify the expression further by adding 7 and -4 to get 3:

3m + 3

So the equivalent expression is:

5m - m + 7 - m - 4 = 3m + 3

Therefore, we combined the like terms by using the addition property of addition and subtraction. The final equivalent expression is 3m + 3.

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Which step is needed to finish the equivalent expression?

5m-m+7-m-4=

5m-m-m+7-4=

(5-1-1) m+ 3 =

A. Use the addition property to simplify the terms inside the parentheses.

B. Use the associative property to simplify the terms in the parentheses.

C. Use the commutative property to simplify the terms in the parentheses.

D. Use the distributive property to simplify the terms in the parentheses.

What is the intersection of the graphs of the lines 2x+y=-3 and 3x - y = 13

Answers

Answer - solution is ( 2, -7 )

Step by step

Using elimination method

2x + y = -3
3x -y = 13

We can add the equations and eliminate the +y and -y

5x = 10
Divide both sides by 5 to solve for x

5/5 x = 10/5
Simplify

x = 2

Now substitute the value of x into the first equation and solve for y

2(2) + y = -3
Multiply

4 + y = -3
Subtract 4 from both sides to solve for y

4 - 4 + y = -3 - 4
Simplify

y = -7

Your solution is ( 2, -7)

I graphed it to prove my solution

Given the following sets:

U = {Kazoo, French Horn, Guitar, Ocarina, Bamboo Flute, Viola, Saxophone, Harmonica, Whistle, Tambourine, Turntables, Fiddle, Piccolo}

A = {Tambourine, French Horn, Whistle, Bamboo Flute, Harmonica}

B = {Harmonica, Guitar, Piccolo, Saxophone, Bamboo Flute, Kazoo}

C = {Bamboo Flute, Saxophone, Tambourine, Fiddle, Whistle, Kazoo, Turntables, Ocarina, Guitar}

Select all musical instruments that are in the set:

(A' ∩ B)' ∩ A'

Answers

The musical instruments in the set (A' ∩ B)' ∩ A' are Bamboo Flute, Whistle, and Tambourine.

Define the term sets?

A set is a collection of unique items or components that have been grouped together in accordance with some standard or characteristic. Members or elements of a set are the terms used to describe the objects or elements in a set.

First, let's simplify the given expression step by step:

A' = {All instruments in U except those in A} = {Kazoo, Viola, Ocarina, Guitar, Saxophone, Piccolo, Turntables, Fiddle}

A' ∩ B = {All instruments in A' that are also in B} = {Kazoo, Guitar, Saxophone, Piccolo}

(A' ∩ B)' = {All instruments in U except those in A' ∩ B} = {French Horn, Ocarina, Viola, Bamboo Flute, Harmonica, Whistle, Tambourine}

(A' ∩ B)' ∩ A' = {All instruments in (A' ∩ B)' that are also in A'} = {Bamboo Flute, Whistle, Tambourine}

Therefore, the musical instruments in the set (A' ∩ B)' ∩ A' are Bamboo Flute, Whistle, and Tambourine.

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I will mark you brainiest!

Which set of coordinates, when paired with (3, -3) and (10, -3), result in a square?

A) (-3, -3) and (-10, -3)
B). (3, 10) and (10, 3)
C). (-3, 4) and (-10 , 4)
D). (3, 4) and (10, 4)

Answers

The correct option for the given question if option D. The set of coordinates (3, 4) and (10, 4) when paired with (3, -3) and (10, -3) will result in square.

They given the coordinates of a square (3, -3) and (10, -3).

Distance between these points is: √[tex](x_2-x_1 )^2+(y_2-y_1)^2[/tex]

Distance between given two points = [tex](10-3 )^2+(-3-(-3))^2[/tex]

So, distance between given two points (3, -3) and (10, -3) is 7 units.

So we need to check every option with the distance formula to verify the set of points. When the distance between given two points is equal to

7 units, then the answer is correct.

Option A: [tex]\sqrt{(-3-(3) )^2+(-3-(-3))^2}[/tex] = [tex]\sqrt{6^2} = 6[/tex] units. So option is wrong.

Option B: [tex]\sqrt{(3-(3) )^2+(10-(-3))^2}[/tex] = [tex]\sqrt{13} ^2 =13[/tex] units. So option is wrong.

Option C: [tex]\sqrt{(-3-(3) )^2+(4-(-3))^2}[/tex] = [tex]\sqrt{36+49}[/tex] = [tex]\sqrt{85\\}[/tex]. So option is wrong.

Option D: [tex]\sqrt{(3-(3) )^2+(4-(-3))^2}[/tex] = [tex]\sqrt{7^2}[/tex] = 7 units.

The distance between given two points is 7 units. So the set (3, 4) and (10, 4) is the other two vertices of the square. Option D is correct.

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46. (Sections 3 and 4) Is talking on a cell phone while driving more distracting than talking to a passenger? Researchers used 48 undergraduate students as subjects in an experiment to help answer this question. The researchers randomly assigned 24 of the subjects to drive in a simulator while talking on a cell phone and the other 24 to drive in the simulator while talking to a passenger. Of the 24 cell phone users, 12 missed the exit they were supposed to take. Of the 24 subjects talking to a passenger, only 3 missed the exit. 19 (a) State the appropriate null and alternative hypotheses, using "equally likely" and "more likely" instead of same ABILITY and greater ABILITY. (b) Describe a Type I error in this context, along with a consequence of this error. (c) Describe a Type Il error in this context, along with a consequence of this error. (d) What is the evidence for the alternative hypothesis? (e) Explain how to use note cards to simulate the difference (Cell phone Passenger) in missed-exit percentage, assuming that students like these are equally likely to miss the exit with either treatment.​

Answers

Note that the responses to the above prompt which has to do with a research question "Is talking on a cell phone while driving more distracting than talking to a passenger?" are given below.

What are the null and alternative hypotheses of the above research?

a) The appropriate null and alternative hypotheses using "equally likely" and "more likely" instead of same ABILITY and greater ABILITY are:

Null Hypothesis: Talking on a cell phone while driving is equally likely to be distracting as talking to a passenger while driving.

Alternative Hypothesis: Talking on a cell phone while driving is more likely to be distracting than talking to a passenger while driving.

b) In this context, a Type I error occurs if we reject the null hypothesis when it is actually true, which means we conclude that talking on a cell phone while driving is more distracting than talking to a passenger while driving, when in fact there is no significant difference in distraction levels between the two.

The consequence of a Type I error in this context would be that drivers may be unfairly prohibited from talking on cell phones while driving, while passengers are still allowed to talk freely. This may lead to a situation where drivers are more likely to engage in distracting behaviors, such as texting or checking social media, which can lead to even more dangerous driving situations.

c) In this context, a Type II error occurs if we fail to reject the null hypothesis when it is actually false, which means we conclude that there is no significant difference in distraction levels between talking on a cell phone and talking to a passenger while driving, when in fact talking on a cell phone is more distracting.

The consequence of a Type II error in this context would be that drivers may continue to talk on cell phones while driving, believing that it is no more distracting than talking to a passenger, when in fact it may be significantly more distracting. This could increase the risk of accidents, injuries, and fatalities on the road.

d) The evidence for the alternative hypothesis comes from an experiment where drivers talking on a cell phone missed an exit more frequently than those talking to a passenger.

e) To simulate the difference in missed-exit percentage between talking on a cell phone and talking to a passenger, assuming that students like these are equally likely to miss the exit with either treatment, we can use note cards as follows:

Take two different colors of note cards, one for each treatment: cell phone and passenger.Write "missed exit" on half of the cards for each treatment and "did not miss exit" on the other half.Shuffle the cards for each treatment separately.Pick one card randomly from each treatment and compare them to see if the driver missed the exit or not.Repeat steps 4 for a total of 24 trials for each treatment, which represents the sample size of the experiment.Record the number of missed exits for each treatment and calculate the difference in missed-exit percentage.

By repeating this process many times, we can obtain a distribution of the differences in missed-exit percentage that would occur by chance if there were no difference in distraction levels between the two treatments.

We can then compare the observed difference in missed-exit percentage from the actual experiment to this distribution to determine the likelihood of obtaining such a difference by chance and make statistical inferences about the hypothesis.

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Full Question:

(Sections 3 and 4) Is talking on a cell phone while driving more distracting than talking to a passenger?

Researchers used 48 undergraduate students as subjects in an experiment to help answer this question. The researchers randomly assigned 24 of the subjects to drive in a simulator while talking on a cell phone and the other 24 to drive in the simulator while talking to a passenger.


Of the 24 cell phone users, 12 missed the exit they were supposed to take. Of the 24 subjects talking to a passenger, only 3 missed the exit.


(a) State the appropriate null and alternative hypotheses, using "equally likely" and "more likely" instead of same ABILITY and greater ABILITY.

(b) Describe a Type I error in this context, along with a consequence of this error.

(c) Describe a Type Il error in this context, along with a consequence of this error.

(d) What is the evidence for the alternative hypothesis?

(e) Explain how to use note cards to simulate the difference (Cell phone Passenger) in missed-exit percentage, assuming that students like these are equally likely to miss the exit with either treatment.​

A young executive is going to purchase a vacation property for investment purposes. She needs to borrow $85,000.00 for 30 years at 5.8% compounded monthly, and will make monthly payments of $498.74. (Round all answers to 2 decimal places.)

What is the unpaid balance after 13 months? $


During this time period, how much interest did she pay?

Answers

To find the unpaid balance after 13 months, we need to calculate how much of the loan principal has been paid off by the monthly payments. We can use an amortization table to help with this calculation.

Month Payment Interest Principal Balance

0 - - - 85,000.00

1 498.74 410.83 87.91 84,912.09

2 498.74 409.63 89.11 84,823.98

3 498.74 408.42 90.32 84,733.67

...

12 498.74 398.29 100.45 83,810.25

13 498.74 397.06 101.68 83,708.57

So after 13 months, the unpaid balance on the loan is $83,708.57.

To calculate how much interest the executive paid during this time period, we can subtract the amount of principal paid from the total amount of payments made and then round to two decimal places:

Total payments made in 13 months = $498.74/month x 13 months = $6,482.62

Interest paid = Total payments made - Principal paid = $6,482.62 - $1,307.50 = $5,175.12

Therefore, the executive paid $5,175.12 in interest during the first 13 months of the loan.

What is the LCD of 3/10 and 1/5

Answers

Answer:

Step-by-step explanation:

10

is the awnser you dummy

Hi,
10 is the answer to your question.

Find the surface area of the pyramid 17m 12m 12m

Answers

Answer:

408m^3

Step-by-step explanation:

Solving quadratic equations by factoring

Answers

Answer:

r=1

Step-by-step explanation:

we can start by bringing the -7 to the left:

We get 7r^2-14r+7=0

from here we can factor out 7 from the whole equation and get

7(r^2-2r+1)=0 and then divide by seven on both sides to get r^2-2r+1

after that, we can factor that into (r-1)^2=0 by special products.

therefore the answer is r=1

Answer:

r = 1

Step-by-step explanation:

7r² - 14r + 7 = 0

7(r² - 2r + 1) = 0

7(r - 1)(r - 1) = 0

r = 1

You work as a dietician. You want to see if the 1-month diet offered to your clients is effective. You collected your clients' weights in their first visit with you and after the 1-month diet program. Is the diet plan effective? Use a=0.05.

What is the null and alternative hypothesis?


H0: μbefore = μafter , H1: μbefore > μafter

H0: μbefore = μafter , H1: μbefore ≠ μafter

H0: μbefore ≠ μafter , H1: μbefore < μafter

Answers

If the test's p-value is less to 0.05, we should reject the null hypothesis therefore decide that the diet plan is beneficial since we will adopt a significance level of a=0.05.

Explain about the null and alternative hypothesis?The null hypothesis (H0) states that there is no discernible difference in the clients' mean weights before and following the diet program, indicating that the diet regimen was ineffective. The null hypothesis (H1) indicates that there's not a difference at all and the diet is successful.

Under this situation, the appropriate null as well as alternative hypothesis would be:

H0: μbefore = μafter

H1: μbefore > μafter

As we are only concerned with whether the clients' weight has fallen as a result of the diet program, this constitutes a one-tailed test.

If the test's p-value is less to 0.05, we should reject the null hypothesis therefore decide that the diet plan is beneficial since we will adopt a significance level of a=0.05.

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Please help, it’s Geometry

Answers

The value of the angle y is 52. 5 degrees

The value of the side d is 7. 01

How to determine the values

It is important to note that trigonometric identities are defined are equalities which involves trigonometric functions and are true for every value of the occurring variables.

From the information given, we have that;

d = 2.8 and h = 4.6

So, using the cosine identity,

cos θ = adjacent/hypotenuse

Substitute the values

cos θ = 2.8/4.6

cos θ = 0. 6087

Take the cosine inverse

θ = 52. 5 degrees

Using the sine identity.

sin θ = opposite/hypotenuse

sin 29 = d/14.5

cross multiply

d = 7. 01

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Andre wants to buy a backpack. The normal price of the backpack is $40. He notices that a store that sells the backpack is having a 30% off sale. What is the sale price of the backpack?​

Answers

Answer:

Step-by-step explanation: For this, we need to first find 30 percent of 40 dollars. 30% = 0.3. So 40 x 0.3 = 12. Now, since it is 30% OFF, we subtract 12 from 40

40-12 = 28 dollars.

Andy has 4 red cards, 3 blue cards, and 2 green cards. He chooses a card and replaces it before choosing a card again. How many possible outcomes are in the sample space of Andy's experiment?
A) 18
B) 9
C)81
D)3

Answers

There are 81 ways in a sample space of Andy's experiment. Option C is the correct answer.

What is the principle of multiplication?

A key counting concept used in combinatorics to determine the total number of potential outcomes of a series of independent occurrences is the multiplication principle, commonly referred to as the multiplication rule. It asserts that the product of the number of potential outcomes for each independent event in a chain results in the overall number of outcomes.

The total number of cards Andy can choose from are:

4 + 3 + 2 = 9 cards.

Since the cards are replaced before choosing the next one, using the multiplication principle we have:

Total number of outcomes = 9 * 9 = 81

Hence, there are 81 ways in a sample space of Andy's experiment. Option C is the correct answer.

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Consider the function f(x) = ¹ for 0 ≤ x ≤ 20. x = a real number. The graph of f(x) 20 = ¹ is a horizontal line. However, since 0 ≤ x ≤ 20, f(x) is restricted to the portion 20 between x = 0 and x = 20, inclusive. f (x) 1 20 0 Figure 5.5 Find P(x​

Answers

The probability of x being less than 2 is 0.1 so the answer to the question P(x<2​) is 0.1.

What is probability?

It is known as the measure of how likely something is to happen, expressed as a number between 0 and 1.  Probability is used to help make predictions and decisions about the future.

This is because the probability of a value x being less than 2 is equal to the fraction of the domain of the function that is less than 2.

In this case, we can calculate the probability of x being less than 2 by taking the ratio of the length of the interval between 0 and 2 to the total length of the interval between 0 and 20.

The length of the interval between 0 and 2 is 2, and the total length of the interval between 0 and 20 is 20.

Therefore, the ratio of these is 2/20, which is equal to 0.1.

Thus, the probability of x being less than 2 is 0.1.

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Find the slope of the line shown below

Answers

Answer:

Step-by-step explanation:

the slope equal 2

The science club is going to the space museum. The club consists of 27 students. If admission costs 6.50 for children ages 4-11 and 8.50 for children ages 12-17 how much will it cost for the entire science club’s admission to the museum? Age: 10- 4 students age 11: 11 students age 12-7 students age 13- 3 students age 14- 2 students

Answers

Answer: The answer is 199.5

(100-30)x60 divided by 100

Answers

Answer:42
PEMDAS
(100-30)=70
70x60=4200
4200/100=42

25/3% of 4.5km in metres

Answers

25/3% of 4.5km is 50000 m.

The formula used to calculate the 25/3% of 4.5km in metres is:

(25/3)% of 4.5km = (25/3) x 4.5km

Convert kilometres to metres

1 km = 1000 m

Therefore, 4.5 km = 4.5 x 1000 = 4500 m

Calculate 25/3% of 4500 m

(25/3)% of 4500 m = (25/3) x 4500 m

Simplify

(25/3) x 4500 m = (25 x 4500)/3

Divide

(25 x 4500)/3 = 150000/3

Simplify

150000/3 = 50000 m

Therefore, 25/3% of 4.5km = 50000 m.

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Complete question

What is 25/3% of 4.5km in metres?

can someone please help me with this question

Answers

By the definitiοn οf cοngruency, line segment AX is cοngruent tο line segment CX.

What is cοngruency?

Cοngruency is a term used in geοmetry tο describe the equality οf twο geοmetric figures in terms οf size and shape. Twο figures are said tο be cοngruent if they have the same shape and size, which means that all cοrrespοnding angles are equal, and all cοrrespοnding sides are equal in length.

The cοncept οf cοngruency is impοrtant in geοmetry because it allοws us tο cοmpare and analyse geοmetric shapes and οbjects based οn their similarities and differences.

Given: Angle A is cοngruent tο angle C, and line segment BX is cοngruent tο line segment DX.

Tο prοve: Line segment AX is cοngruent tο line segment CX.

Statement 1: ∠AXD ≅ ∠CXB (Given)

Statement 2: Triangle AxD ≅ Triangle CXB (By Angle-Side-Angle cοngruence)

Statement 3: Ax ≅ Cx (By Cοrrespοnding parts οf cοngruent triangles are cοngruent)

By cοmbining statements 2 and 3, we can cοnclude that line segment AX is cοngruent tο line segment CX. Therefοre, the prοοf is cοmplete.

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