Could anybody please help with Algebra 1
y=3x−7
y=3x+1

Answers

Answer 1

The system of equations:

y=3x−7

y=3x+1

Has no solutions, because the two lines are parallel.

How to solve the system of equations?

Here we have the following system of equations:

y = 3x−7

y = 3x+1

Now, remember that if we graph both equations of our system in the same coordinate axis, the solutions of the system are the points where the graphs intercept.

Also notice that we have two linear equations with the same slope (m = 3) and different y-intercepts.

That is the definition of parallel linear equations, so the graphs of these linear equations will never intercept.

This means that our system of equations has no solutions.

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Related Questions

6 to the second power ÷ [(4.3×3)+5.1]

Answers

2 is the answer
That’s the answer.

All unicorns are gazelles. No lions are gazelles Some unicorns are not lions. This syllogism commits the existential fallacy from: a. The Aristotelian standpoint but not from the Boolean standpoint. b. The Boolean standpoint but not from the Aristotelian standpoint. c. Both the Boolean and the Aristotelian standpoints. d. Neither the Boolean nor the Aristotelian standpoint. e. The syllogistic standpoint.

Answers

The correct answer is (a) The syllogism commits the existential fallacy from the Aristotelian standpoint but not from the Boolean standpoint.

The syllogism "All unicorns are gazelles. No lions are gazelles. Some unicorns are not lions." commits the existential fallacy from the Aristotelian standpoint but not from the Boolean standpoint.

From an Aristotelian standpoint, a valid syllogism requires that the middle term (in this case, "gazelles") is distributed at least once. However, in this syllogism, the middle term "gazelles" is not distributed in the second premise ("No lions are gazelles"). Therefore, the syllogism is invalid from an Aristotelian standpoint.

From a Boolean standpoint, the syllogism can be translated into a set of logical statements using quantifiers and logical operators. The premises can be expressed as follows:

∀x (Unicorn(x) → Gazelle(x))

∀x (Lion(x) → ¬Gazelle(x))

The conclusion can be expressed as follows:

∃x (Unicorn(x) ∧ ¬Lion(x))

Using these logical statements, we can see that the syllogism is valid from a Boolean standpoint, and does not commit the existential fallacy.

Therefore, the correct answer is (a) The syllogism commits the existential fallacy from the Aristotelian standpoint but not from the Boolean standpoint.

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\( \frac{ - 2 + 3 \times 6} 5\)
I need help please ​

Answers

-2 + 3 x 6

-2 + 18

16

16/5 or 3.2

Answer:

Step-by-step explanation:

we do first the multiplication 3*6=18

-2+18=16

16/5 is your answer or 3.2

A coach is buying snacks for 22 players at a soccer match. She pays a total of $77 to
buy each player a bottle of water and an energy bar. The price of one energy bar is $2.
Let w equal the price of a bottle of water. Write an equation that
represents the situation.

Answers

Answer: 22( w + 2 ) =77 and the amount of the water bottle would be 1.50

Step-by-step explanation: i dont know what to write??

find the formula for the mth term. the mth term of the sequence is 1536. find the value of m

Answers

Answer:

is given that the first term of G.P is a

1

=3 and the second term is a

2

=6, therefore,

r=

a

1

a

2

=

3

6

=2

We know that the formula for the nth term of an G.P is T

n

=ar

n−1

, where a is the first term, r is the common ratio.

It is given that the first term is a=3, the nth term is T

n

=1536 and the common ratio is r=2, thus,

T

n

=ar

n−1

⇒1536=3×(2)

n−1

3

1536

=2

n−1

⇒2

n−1

=512

⇒2

n−1

=2

9

⇒n−1=9

⇒n=9+1=10

Hence, the 10th term is 1536.

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Find the nth term of the sequence 0.7,0.77,0.777....

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A pizza restaurant is offering a special price on pizzas with
2
22 toppings. They offer the toppings below:
Pepperoni
Sausage
Ham
Chicken
Green pepper
Onion
Mushroom
Pineapple
Pepperoni
Chicken
Mushroom


Sausage
Green pepper
Pineapple


Ham
Onion




Suppose that Rosa's favorite is sausage and onion, but her mom can't remember that, and she is going to randomly choose
2
22 different toppings.
What is the probability that Rosa's mom chooses sausage and onion?

Answers

The probability that Rosa's mom chooses sausage and onion is: 1/8C₂.

What is the probability?

Probability refers to the chance of an event occurring. It is given by the formula: number of favorable outcomes/number of total outcomes. The total number of groups from which Rosa's mom can make her choice is 1 and this is the number of favorable outcomes.

But, the total number of outcomes that Rosa can hope to expect are 2 two toppings(sausage or onions) out of 8. So, the selected answer is the representation of the probability.

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Find the x- and y-intercepts of the graph of 2x + 7y = 8. State your answers as
whole numbers or as improper fractions in simplest form.

Answers

Answer:

y-intercept=8/7

x-intercept=4

Step-by-step explanation:

y=(8-2x)/7

=8/7-2/7x

Therefore y-intercept =8/7,

Subt.y=0,

8/7-2/7x=0

2/7x=8/7

x intercept=4

\(\\ \sf\longmapsto 2x+7y=8\)

.X-intercept

y=0

\(\\ \sf\longmapsto 2x+7(0)=8\)

\(\\ \sf\longmapsto 2x=8\)

\(\\ \sf\longmapsto x=4\)

(4,0)Y-intercept

x=0

\(\\ \sf\longmapsto 2(0)+7y=8\)

\(\\ \sf\longmapsto 7y=8\)

\(\\ \sf\longmapsto y=\dfrac{8}{7}\)

(0,8/7)

17. a) Distinguish between the Population Regression Function (PRF) and the Sample Regression Function (SRF) using appropriate diagrams and specifications for each function. (30 marks) b) Outline the

Answers

Distinguish between the Population Regression Function (PRF) and the Sample Regression Function (SRF) are given below.

Here, we have,

The population regression function, also known as the PRF, is a theoretical representation of the relationship that exists between a population's dependent and independent variables. The sample regression function, also known as the SRF, is an estimation of the relationship that exists between a sample's dependent and independent variables.

The Gauss-Markov assumptions that are connected to the traditional linear regression model are that the errors follow a normal distribution, that the errors have a mean of zero, and that the errors do not have any correlation with one another. These presumptions are important due to the fact that they make it possible to employ statistical techniques when estimating the values of the model's parameters. Testing a hypothesis necessitates making a number of assumptions, one of which is that the errors will be of a homoscedastic distribution.

The log-linear form is the functional form that needs to be used in order to get an accurate estimate of the Cobb-Douglas production function. You can test the hypothesis that there is a constant return to scale by testing the hypothesis that the coefficients on the inputs are equal to one. This will allow you to determine whether or not the hypothesis is true.

Population regression function (PRF), a theoretical description of the relationship between a population's dependent and independent variables, is known as the PRF One way to estimate the strength of a link between two sets of dependent and independent variables is to use a sample regression function (SRF).

Among the Gauss-Markov assumptions that are linked to the standard linear regression model are that the errors follow a normal distribution, that the errors have a mean of zero, and that the errors are not correlated with one another. Using statistical approaches to estimate the model's parameters is made possible by these presuppositions. The homoscedastic distribution of mistakes is one of many assumptions that must be made while testing a hypothesis.

To obtain an accurate estimate of the Cobb-Douglas production function, the functional form must be in log-linear form. The hypothesis that the coefficients on the inputs are all one can be tested to see if there is a continuous return to scale. This will help you determine if the hypothesis is correct.

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complete question:

17. a) Distinguish between the population Regression Function (PRF) and the Sample Regression Function (SRF) using appropriate diagrams and specifications for each function. (30 marks) b) Outline the Gauss-Markov assumptions associated with the Classical Linear Regression Model (CLRM) and discuss their significance. State any additional assumption that is required for hypotheses testing. (30 marks) c) Consider the following Cobb-Douglas production function: Qe = B.402K where, Q = output level, L = labour input, K = capital input Which functional form should you use to estimate this model? Clearly explain how you would test the hypothesis that there is constant return to scale. (40 marks)

Prove that for all integers a and m, if a and m are the lengths of the sides of a right triangle and (m+1) is the length of the hypotenuse, then a is an odd integer.

Answers

The lengths of the sides of a right triangle and (m+1) is the length of the hypotenuse, then a is an odd integer

We will prove this by contradiction.

Suppose that a and m are both even integers. Then, we can write a = 2k and m = 2j for some integers k and j.

By the Pythagorean theorem, we have:

\(a^2 + m^2 = (m + 1)^2\)

Substituting a = 2k and m = 2j, we get:

\((2k)^2 + (2j)^2 = (2j + 1)^2\)

Simplifying, we get:

\(4k^2 + 4j^2 = 4j^2 + 4j + 1\)

Subtracting 4j^2 from both sides, we get:

\(4k^2 = 4j + 1\)

Dividing both sides by 4, we get:

\(k^2\) = j + 1/4

Since \(k^2\) is an integer and j + 1/4 is not an integer, we have a contradiction. Therefore, our initial assumption that a and m are both even integers must be false.

So, either a or m is an odd integer. Since a and m are the lengths of the legs of a right triangle, which are always integers, the odd integer must be a. Therefore, for all integers a and m, if a and m are the lengths of the sides of a right triangle and (m+1) is the length of the hypotenuse, then a is an odd integer.

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T/F in an experiment, the researcher only watches and arrives at a conclusion but does not interfere with the subjects.

Answers

False, in an experiment, the researcher does not only watch and arrive at a conclusion but also interferes with the subjects.

In an experimental study, the researcher manipulates one or more variables, known as the independent variables, to observe the effect on another variable, known as the dependent variable.

Participants or subjects are randomly assigned to different groups or conditions in the experiment.

The researcher controls and manipulates the independent variable, introducing a change or intervention to the experimental group(s) while keeping the control group(s) under the same conditions without the intervention.

The dependent variable is measured and compared between the different groups to analyze the impact of the independent variable. This allows the researcher to draw conclusions about the cause-and-effect relationship between the variables.

In this process, the researcher actively interferes with the subjects and their environment, as opposed to just observing them.

Thus, it is not accurate to say that the researcher only watches and arrives at a conclusion without interfering with the subjects in an experiment. The interference is an essential part of the experimental process, as it helps to establish causal relationships between variables.

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an opaque bag contains 5 green marbles, 3 blue marbles, and 2 red marbles. if a marble is drawn at random what are the odds of drawing a red marble?

Answers

Answer:

1 out of 2

Step-by-step explanation:

Sorry if I’m wrong

Suppose a signal from a radio transmitter tower can be received up to 175 miles away. The following
points represent locations of houses near the transmitter tower with the origin representing the tower.
Which point is not within the range of the tower?
a. (40, 120)
b. (60, 125)
c. (85, 100)
d. (55, 185)
e. (90, 150)

Answers

The point that is not within the range of the radio transmitter tower is

(55, 185).

The range of the radio transmitter tower is given as 175 miles. Out of the five given points, the distance between the origin and point (55, 185) is calculated as sqrt(55² + 185²) = 192.3 miles which is greater than the range of the tower. Therefore, this point is not within the range of the tower.

On the other hand, the distance between the origin and the other four points (40, 120), (60, 125), (85, 100), and (90, 150) are calculated to be 124.6 miles, 131.8 miles, 141.4 miles, and 159.8 miles respectively which are all less than the range of the tower. Hence, these four points are within the range of the radio transmitter tower.

In conclusion, out of the five given points, only the point (55, 185) is not within the range of the radio transmitter tower, which can be received up to 175 miles away.

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50 POINTS! Please Help!

50 POINTS! Please Help!

Answers

This is not a function due to the fact that 4 is used twice. X cannot be used twice when mapping. 4 was used both for y=7 and y=3.

If the diameter of a circle is increased by 6 cm, what is the increase in the circumference of the circle?

Answers

Answer:

The circumference will be larger by 3 cm.

Step-by-step explanation:

We know that the circumference of a circle is C = 2πr, where r is the radius. The circumference can also be expressed as C = 2π \(\frac{d}{2}\), where d is the diameter (since the radius is half the diameter).

So, if we increase the diameter by 6:

C = 2π \(\frac{(d+6)}{2}\)

C = 2π \(\frac{d}{2}+\frac{6}{2}\)

C = 2π \(\frac{d}{2}\) + 3

If we compare this to the original equation, C = 2π \(\frac{d}{2}\), we see that if we increase the diameter by 6 cm, the circumference will be larger by 3 cm.

find the dimensions of a rectangle whose width is 6 miles less than its length and whose area is 72square miles

Answers

Answer:

Length = 12 miles

Width = 6 miles

Step-by-step explanation:

Set up our two equations:

L * W = 72

W = L - 6

So, let's plug W in to find our values:

(Remember: W = L - 6)

L * (L - 6) = 72

Simplify:

L^2 - 6L = 72

L^2 - 6L - 72 = 0

Let's use the quadratic formula (a = 1, b = -6, c = -72)

Quadratic formula:

x = -b ± \(\sqrt{b^2-4ac}\)

______________

           2a

Plug in our values:

\(\frac{-\left(-6\right)\pm \sqrt{\left(-6\right)^2-4\cdot \:1\cdot \left(-72\right)}}{2\cdot \:1}\)

Solve for the square root value:

\(\sqrt{(-6)^2-4*1*(-72)} = 18\)

Set up the equation with simplified values:

L, W = \(\frac{-\left(-6\right)\pm \:18}{2\cdot \:1}\)

\(L_1=\frac{-\left(-6\right)+18}{2\cdot \:1},\:L_2=\frac{-\left(-6\right)-18}{2\cdot \:1}\)

Solve for L1: \(\frac{-\left(-6\right)+18}{2\cdot \:1}\) = 12

Solve for L2: \(\frac{-\left(-6\right)-18}{2\cdot \:1}\) = 6

Since the width is 6 miles less than the length, the width is 6 miles, and the length is 12 miles.

Plug this in to make sure: Does 6 * 12 = 72? Yes. Is 12 6 more than 6? Yes. We have our answers

Length = 12 miles

Width = 6 miles

I need help with this

I need help with this

Answers

Answer: x=3/2 y=4

Step-by-step explanation:

Review Questions
1. Cindy is a baker and runs a large cupcake shop. She has already


a. How many workers will the firm hire if the market wage rate is

hired 11 employees and is thinking of hiring a 12th. Cindy esti- $27.95 ? \$19.95? Explain why the firm will not hire a larger or mates that a 12 th worker would cost her $100 per day in wages $ smaller number of units of labor at each of these wage rates. and benefits while increasing her total revenue from $2,600per. day to $2,750 per day. Should Cindy hire a 12 th worker? b. Show this firm Explain. L016.2 c. Now again determine the firm's demand curve for labor. Complete the following labor demand table for a firm that is assuming that it is selling in an imperfectly competitive marhiring labor competitively and selling its product in a competiket and that, although it can sell 17 units at $2.20 per unit, it tive market. L016.2 ginal product of each successive labor unit. Compare this demand curve with that derived in part b. Which curve is more elastic? Explain. 3. Alice runs a shoemaking factory that uses both labor and capital to make shoes. Which of the following would shift the factory's demand for capital? You can select one or more correct answers from the choices shown. LO16.3 a. Many consumers decide to walk barefoot all the time. b. New shoemaking machines are twice as efficient as older machines. c. The wages that the factory has to pay its workers rise due to an economywide labor shortage.

Answers

Cindy should hire the 12th worker as it would result in a net increase in profit, with additional revenue exceeding the cost of hiring. Insufficient information is provided to determine the demand curve for labor or compare its elasticity. Events that would shift the factory's demand for capital include new, more efficient machines and rising wages due to a labor shortage.

a. To determine whether Cindy should hire a 12th worker, we need to compare the additional revenue generated with the additional cost incurred. Hiring the 12th worker would increase total revenue by $150 ($2,750 - $2,600) per day, but it would also increase costs by $100. Therefore, the net increase in total profit would be $50 ($150 - $100). Since the net increase in profit is positive, Cindy should hire the 12th worker.

b. By hiring the 12th worker, Cindy can increase her total revenue from $2,600 per day to $2,750 per day. The additional revenue generated by the 12th worker exceeds the cost of hiring that worker, resulting in a net increase in profit.

c. To determine the firm's demand curve for labor, we need information about the marginal product of labor (MPL) and the wage rates. Unfortunately, this information is not provided, so we cannot complete the labor demand table or derive the demand curve for labor.

Without specific data or information about changes in the quantity of labor demanded and wage rates, we cannot determine which demand curve (from part b or c) is more elastic. The elasticity of the demand curve depends on the responsiveness of the quantity of labor demanded to changes in the wage rate.

The events that would shift the factory's demand for capital are:

a. New shoemaking machines being twice as efficient as older machines would increase the productivity of capital. This would lead to an increase in the demand for capital as the factory would require more capital to produce the same quantity of shoes.

b. The wages that the factory has to pay its workers rising due to an economy-wide labor shortage would increase the cost of labor relative to capital. This would make capital relatively more attractive and lead to an increase in the demand for capital as the factory may substitute capital for labor to maintain production efficiency.

The event "Many consumers decide to walk barefoot all the time" would not directly impact the demand for capital as it is related to changes in consumer behavior rather than the production process of the shoemaking factory.

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A clinic has several doctors. Every patient, on average, requires about 27 minutes with a doctor Each doctor works 8 hours per day and 7 days per week. The clinic also operates 8 hours per day and 7 days per week. Based on past observations, the clinic must serve 122 patients per day. How many doctors should the clinic hires in order to serve 122 patients per day? Use at least 4 decimals in your calculation and answer.

Answers

The clinic should hire at least 7 doctors in order to serve 122 patients per day.

To determine how many doctors the clinic should hire in order to serve 122 patients per day, we need to calculate the number of patients each doctor can see within their working hours.

Let's start by calculating the total number of minutes each doctor works per day. Since each doctor works 8 hours per day and there are 60 minutes in an hour, the total minutes worked by a doctor per day would be 8 hours × 60 minutes = 480 minutes.

Next, we need to find out how many patients a doctor can see within their working hours. Given that each patient requires an average of 27 minutes with a doctor, the number of patients a doctor can see per day would be 480 minutes ÷ 27 minutes per patient = 17.7778 patients.

Since we can't have a fractional number of patients, we need to round this number up to the nearest whole number to ensure that each patient gets the required attention. Therefore, each doctor can see approximately 18 patients per day.

To serve 122 patients per day, we divide the total number of patients by the number of patients each doctor can see per day: 122 patients ÷ 18 patients per doctor = 6.7778 doctors.

Again, we can't have a fractional number of doctors, so we need to round this number up to the nearest whole number. Therefore, the clinic should hire at least 7 doctors to serve 122 patients per day.

In summary, the clinic should hire at least 7 doctors in order to serve 122 patients per day.

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The statement "P implies Q' is FALSE under which of the following conditions? Choose all that apply. a. P and Q are both true. b. P and Q are both false. c. P is true and Q is false. d. P is false and Q is true.

Answers

The statement "P implies Q" is false under the following conditions: a) P is true and Q is false, and d) P is false and Q is true.

The statement "P implies Q" can be expressed as "if P, then Q." It is a conditional statement where P is the antecedent (the condition) and Q is the consequent (the result).

To determine when the statement is false, we need to identify cases where P is true but Q is false, or when P is false but Q is true.

Option a) states that both P and Q are true. In this case, the statement "P implies Q" holds true because if P is true, then Q is true.

Option b) states that both P and Q are false. In this case, the statement "P implies Q" is considered true because the antecedent (P) is false.

Option c) states that P is true and Q is false. Under this condition, the statement "P implies Q" is false because when P is true, but Q is false, the implication does not hold.

Option d) states that P is false and Q is true. In this case, the statement "P implies Q" is true because the antecedent (P) is false.

Therefore, the conditions under which the statement "P implies Q" is false are a) P is true and Q is false, and d) P is false and Q is true.

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the angle of elevation to the top of a building in chicago is found to be 9 degrees from the ground at a distance of 2000 feet from the base of the building. using this information, find the height of a building.

Answers

Tthe height of the building is approximately 321.86 feet.

Using the given information, we can find the height of the building using trigonometry.

Let's assume that the height of the building is represented by "h". Then, we can create a right triangle with the height of the building as the opposite side, the distance from the base of the building as the adjacent side, and the angle of elevation as the angle between them.

We know that the tangent of an angle is equal to the opposite side divided by the adjacent side. Therefore, we can write the equation:

tan(9°) = h/2000

To solve for "h", we can multiply both sides of the equation by 2000:

2000 * tan(9°) = h

Using a calculator, we can evaluate the right-hand side of the equation:

2000 * tan(9°) ≈ 321.86

Therefore, the height of the building is approximately 321.86 feet.

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I’ll give brainliest
Completed explication for polynomials with examples

Answers

Answer:

am algebraic expression made up of a collection of terms, typically separated by a + or -

*a term that can be made up of exponents, coefficients, & variables

example:

4x + 2x - 6

graph the following: y = -4x – 1.

Answers

This is a line portrayed in point-slope form.

First, put a point at (0, -1). This is your y-intercept.

Next, go down 4 units and to the right one unit. Place a point at (1, -4). Then go down another 4 units and right once more. Place a point at (2, -8).

Now, go back to your y-intercept and go up 4 units and to the left one unit. Place a point at (-1, 3).

Finally, draw a line connecting all your points.

Next time you need to graph something, look up a graphing calculator and then you can input your equation. I like using the desmos one. It is free.
graph the following: y = -4x 1.

outside temperature over a day can be modeled as a sinusoidal function. suppose you know the temperature is 65 degrees at midnight and the high and low temperature during the day are 76 and 54 degrees, respectively. assuming t is the number of hours since midnight, find an equation for the temperature, d, in terms of t.

Answers

Outside temperature over a day can be modeled as a sinusoidal function. suppose you know the temperature is 65 degrees at midnight and the high and low temperature during the day are 76 and 54 degrees, respectively. assuming t is the number of hours since midnight, the temperature, d, in terms of t. The Equation is :

                                    D = - 11 sin(π/12) + 65

The range is 76 - 54 = 22

so, a = 11

we know that the period is 24 hours

So, 2π/k=24

  ⇒ 24k = 2π

⇒ k = π/12

So far we have:

D = 11 sin(π/12)(t) + 65

Giving us a range from 76 to 54

But obviously the temp after midnight would decrease, whereas our function has it increasing to 76 when t = 6 (6:00 am)

We could do a phase shift, or more simply, just flip the function to

D = -11sin(π/12)t + 76

Checking some values

t = 0 , D = -11sin0 + 65 = 65

t=6 , (6:00 am) D = -11 sin (π/2) + 65 = 54

t = 12 (noon), D = -11 sin π + 65 = 65

t = 18 , (6:00 pm) , D = -11sin 3π/2 + 65 = 76

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What is the formula for calculating angle?

Answers

Angles Formulas at the center of a circle can be expressed as:

Central angle, θ = (Arc length × 360º)/(2πr) degrees

Sum of Interior angles=180°(n-2)

The angles formulas are used to find the measures of the angles. An angle is formed by two intersecting rays, called the arms of the angle, sharing a common endpoint.

The corner point of the angle is known as the vertex of the angle. The angle is defined as the measure of the turn between the two lines.

There are various types of formulas for finding an angle; some of them are the central angle formula, double-angle formula, etc...

We use the central angle formula to determine the angle of a segment made in a circle.

We use the sum of the interior angles formula to determine the missing angle in a polygon.

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When building a house, the number of days required to build varies inversely with with the number of workers. One house was built in 136 days by 7 workers. How many days would it take to build a similar house with 34 workers

Answers

Answer:

it would take them 4 days to build the house

The estimate on an explanatory variable is not statistically significant at the 5%-level if the t-statistic is greater than 2.5. the p-value is less than 0.05. the 95% confidence interval does not contain zero. the 95% confidence interval contains zero.

Answers

The estimated value of the explanatory variable is not statistically significant at the 5%-level if a. the t-statistic is greater than 2.5.

The t-test is a hypothesis testing technique used to decide whether the estimated coefficient of a linear regression model is statistically significant or not. The t-value is used to measure the size of the difference between the estimated coefficient and the hypothesized value. When the t-value exceeds a critical value, such as 2.5, the estimated value of the explanatory variable is not significant at the 5%-level. It implies that the null hypothesis, which assumes that the explanatory variable's coefficient is zero, cannot be rejected.

The p-value is a measure of the probability of obtaining a more extreme value of the test statistic than the observed value if the null hypothesis is true. A small p-value implies that the null hypothesis should be rejected. When the p-value is less than 0.05, it means that the estimated value of the explanatory variable is significant at the 5%-level.

The confidence interval is a range of values that is expected to include the true value of the population parameter with a specified level of confidence. A 95% confidence interval means that the true value of the population parameter lies within the range 95% of the time. The 95% confidence interval does not contain zero implies that the estimated value of the explanatory variable is statistically significant at the 5%-level since it suggests that the population parameter is different from zero at the 5%-level. Conversely, if the 95% confidence interval contains zero, the estimated value of the explanatory variable is not statistically significant at the 5%-level since it means that the population parameter is not different from zero at the 5%-level. Therefore, it is essential to examine the t-statistic, p-value, and confidence interval while conducting hypothesis testing to make an informed decision.

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Find the volume of the pyramid.
7 yd
A. 280 yd'
OB. 204 yd'
OC. 226 yd¹
OD. 840 yd'

Find the volume of the pyramid.7 ydA. 280 yd'OB. 204 yd'OC. 226 ydOD. 840 yd'

Answers

answer: D.840 yards

Step-by-step explanation:

as to find volume of any 3 d shape we multiply l×b×h to find the volume

7×10×12=840

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Calculate the distance between the points G=(-9, 8) and H=(-2, 2) in the coordinate plane.
Give an exact answer (not a decimal approximation).
10+
8
Distance: 0
+
-10-8
-6
-4
- 2
2
6
8
10
-S
-10

Answers

Answer:

\(\sqrt{153}\)

Step-by-step explanation:

Using Pythagoras in 3D.

\(a^2+b^2=c^2\) (The distance between two points in a direction)

For the x-plane.

\((-9)^2+(-2)^2=c^2\\85=c^2\\c=\sqrt{85}\)

For the y-plane.

\(8^2+2^2=c^2\\68=c^2\\c=\sqrt{68}\)

Finding the shortest distance between those two points.

\(\sqrt{68}^2+\sqrt{85}^2=c^2\\68+85=c^2\\153=c^2\\c=\sqrt{153}\)

What is the slope of the graph of 24x – 2y = 38 ?A. -19B. -12/19C. 19/12D. 12

Answers

Equation of a Line

The slope-intercept form of a line is:

y = mx + b

Where m is the slope.

We are given the equation of a line:

24x - 2y = 38

Subtracting 24x:

-2y = -24x + 38

Dividing by -2:

y = (-24/-2)x + 38/(-2)

Operating:

y = 12x - 19

We can see that b = 12, thus the slope of the graph is 12

Answer:

D. 12

coordinate algebra-- translation reflection

coordinate algebra-- translation reflection

Answers

The coordinates of the vertices of the quadrilateral following the transformations are as follows;

(a) Translation according to the rule (x, y) → (x + 9, y)

Q'\({}\)               U'            A'            D'

(3, -1)\({}\)         (6, -1)      (7, -3)      (2, -3)

Please find attached the drawing of the quadrilateral Q'U'A'D' created using MS Word

(b) A reflection across the x-axis

Q''\({}\)               U''            A''            D''

(3, 1)\({}\)            (6, 1)       (7, 3)         (2, 3)

Please find attached the drawing of the quadrilateral Q''U''A''D''

What is a transformation in geometry?

A transformation changes the location, size or shape of a geometric figure

The given coordinates of the vertices of QUAD are; Q(-6, -1), U(-3, -1), A(-2, -3), D(-7, -3)

(a) The rule for the translation of the rectangle QUAD is (x, y) → (x + 9, y)

The coordinates of the vertices of the image following the translation are therefore;

Q(-6, -1) → \({T_{(x + 9,\ y)}\) → Q'(-6 + 9, -1) = Q'(3, -1)

U(-3, -1) → \({T_{(x + 9,\ y)}\) → U'(-3 + 9, -1) = U'(6, -1)

A(-2, -3) → \({T_{(x + 9,\ y)}\) → A'(-2 + 9, -3) = A'(7, -3)

D(-7, -3) → \({T_{(x + 9,\ y)}\) → D'(-7 + 9, -3) = D'(2, -3)

Which gives;

Q'\({}\)               U'            A'            D'

(3, -1)\({}\)         (6, -1)      (7, -3)      (2, -3)

b) The reflection of a point (x, y) over the X-axis gives the point (x, -y)

Therefore, the coordinates of the vertices of the image of the quadrilateral Q'U'A'D' following a reflection across the x-axis are found as follows;

Q'(3, -1) → \({R_{x-axis}\) → Q''(3, 1)

U'(6, -1) →  \({R_{x-axis}\)  → U''(6, 1)

A'(7, -3) →  \({R_{x-axis}\)  → A''(7, 3)

D'(2, -3) →  \({R_{x-axis}\)  → D''(2, 3)

Q''\({}\)               U''            A''            D''

(3, 1)\({}\)            (6, 1)       (7, 3)         (2, 3)

Please find attached the labeled drawings of the translation and the reflection of the quadrilateral QUAD

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coordinate algebra-- translation reflection
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