Which of the following equations is of a parabola with a vertex at (1, -1)?

Answer:

a. option is the correct answer

Answer:

2 loops need to be done

Step-by-step explanation:

3.1/1.55=2

In the given scenario, the value "1672" represents the number of car owners in a country.

A parameter is a characteristic or measure that describes a population, while a statistic is a characteristic or measure that describes a sample.

Since the study was conducted on all 1672 car owners in the country, the value "1672" represents the entire population and is therefore a parameter. It describes the total number of car owners in the country as a whole.

In summary, the value "1672" is a parameter in this context, as it represents a characteristic of the entire population of car owners in the country.

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Every coordinate point of the original triangle has its scale factor doubled by one-half if the scale factor is one. multiply by half after dilation with a scale factor of two.

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Every coordinate point of the original triangle has its scale factor doubled by one-half if the scale factor is one. multiply by half after dilation with a scale factor of two.

We locate the dilation's center point and measure the distances between it and other points on the preimage and the image in order to get the scale factor for the dilation. As correctly stated by Math Bits Notebook, the scale factor is determined by the ratio of these distances.

Keep in mind that each coordinate must be multiplied by the scale factor in order to enlarge an object in the coordinate plane. The mapping will be (x, y) (1.5 x, 1.5 y) with this dilation. The original is represented by the blue quadrilateral in the graph above, while the dilatation is shown by the red picture. Connect the image's vertices to the center of dilation by drawing straight lines.

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The correct option is (B) The actual time required to deliver all the items to the baggage claim area based on the number of items unloaded will be very close to the time predicted by a least-squares model.

In order to find the line that is most suitable for a set of data, the least squares method is a type of mathematical regression analysis. It offers a visual representation of the relationship between both the data points.

Some characteristics of least square model are-

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The complete question is-

At a large airport, data were recorded for one month on how many baggage items were unloaded from each flight upon arrival as well as the time required to deliver all the baggage items on the flight to the baggage claim area scatter plot of the two variables indicated a Strong; positive linear association between the variables_ Which of the following statements is a correct interpretation of the word ~strong in the description of the association?

(A) least-squares model predicts that the more baggage items that are unloaded from a flight; the greater the time required to deliver the items to the baggage claim area

(B) The actual time required to deliver all the items to the baggage claim area based on the number of items unloaded will be very close to the time predicted by a least-squares model .

(C) The time required to deliver an item to the baggage claim area is relatively constant; regardless of the number of baggage items unloaded from a flight,

(D) The variability in the time required to deliver all items to the baggage claim area is about the same for all flights, regardless of the number of items unloaded from flight

(E) The time required to unload baggage items from a flight is related to the time required to deliver the items to the baggage claim area.

Answer: B

Step-by-step explanation: because 6/5 would give you a number greater than 1 so multiplying it to 2 5/6 will give you number greater than 2 5/6

Answer:

C

Step-by-step explanation:

also close ur tabs bro, u will lag ur computer that way

Answer:

holy sh- thats alot brainly tabs

Step-by-step explanation:

Answer:

56kmp

Step-by-step explanation:

That is all I know.

Answer:

1.6 kpm

Step-by-step explanation:

(32km)/(20min) = 1.6 km/min or kpm

Answer:

2+1.29x=y

x=30

y=40.70

total cost for 30 songs and the app is $40.70

Step-by-step explanation:

The solution of the system of equations that is given is (2,-1).

Given a system of equations are 5x+y=9 and 3x+2y=4.

A system of linear equations (or linear system) is a collection of one or more linear equations involving the same variables.  A solution to a linear system is an assignment of values to the variables such that all the equations are simultaneously satisfied.

The given equations are

5x+y=9    ......(1)

3x+2y=4  ......(2)

Here, the substitution method is used to solve the system of equations.

Find the value of y from equation (1) by subtracting 5x from both sides.

5x+y-5x=9-5x

y=9-5x

To find the value of x substitute the value of y in equation (2).

3x+2(9-5x)=4

Apply the distributive property a(b+c)=ab+ac as

3x+2×9-2×5x=4

3x+18-10x=4

Combine the like terms on the left side as

-7x+18=4

Subtract 18 from both sides and get

-7x+18-18=4-18

-7x=-14

Divide both sides by -7 and get

(-7x)÷(-7)=(-14)÷(-7)

x=2

Substitute the value of x in equation (1) and get

5(2)+y=9

10+y=9

Subtract 10 from both sides

10+y-10=9-10

y=-1

Hence, the solution of system of equations 5x+y=9 and 3x+2y=4 is (2,-1).

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Answer:

14m^2

Step-by-step explanation:

area of triangle = 1/2bh

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

area of rectangle = bw

=(4)(2) = 8

6+8 = 14

Answer:

14m²

Step-by-step explanation:

rectangle area= 4*2=8

triangle area= 1/2*3*4=6

total area=14

Step-by-step explanation:

solution ? you mean where both lines cross each other ?

these are 2 parallel lines (same slope, but different y-intercept), so they never cross each other.

there is no solution.

formally :

3x - 1 = 3x + 4

-1 = 4

this is wrong. therefore there is no solution.

Answer: it would be 6

Step-by-step explanation:

Answer:

40.04

Step-by-step explanation:

It was at 40.04 before the 23% increase. To find 23 % of 52 set it up as a inequality.

x/52 = 23/100

Cross multiply

52 * 23 =  1,196    100 * x =100x

Now solve for x.

100x /100 = 1,196/100          x = 11.96

Subtract answer from 52 to get answer

52 - 11.96 = 40.04

Answer:

i don't know i am sososososo sosososososososo sorry

Step-by-step explanation:

Answer:

the answer is A because the height is 40 feet and the ground is 26°

Answer:

I am pretty it's A

Step-by-step explanation:

Basically the Associative Law of Addition means that the order that the numbers are added does not matter.

Answer:

A. (–4 + i) + 4i = –4 + (i + 4i)

Step-by-step explanation:

edge2020

Have a great day y'all :)

The period of the voltage signal can be calculated using the formula T = 1/f, where T is the period in seconds and f is the frequency in hertz.

In this case, the frequency can be found by noting that the argument of the sine function is 30nt, where n is a constant. This means that the frequency is 30n Hz. Therefore, the period can be calculated as T = 1/(30n) seconds.

Voltage, also known as electric potential difference, is a measure of the difference in electric potential energy between two points in an electric circuit. It is typically measured in volts (V) and is the driving force that pushes electric charges through a circuit.

The voltage between two points in a circuit can be calculated using Ohm's law, which states that voltage (V) equals current (I) times resistance (R): V = I * R. In other words, the voltage across a circuit element is proportional to the current flowing through it and the resistance of the element.

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Given:

Suppose 11 out of 15 students said they were attending the football game.

To find:

How many students out of 375 would you expect to NOT attend the football game?

Solution:

It is given that 11 out of 15 students said they were attending the football game.

\(15-11=4\)

It means 4 out of 15 were not attending the football.

Let x students out of 375 would you expect to NOT attend the football game.

The ratio of students who not attend the football game and total students are equal.

\(\dfrac{x}{375}=\dfrac{4}{15}\)

\(x=\dfrac{4}{15}\times 375\)

\(x=100\)

Therefore, 100 students out of 375 would you expect to NOT attend the football game.

Answer:

the answer is left,5 right 6 and left 7

Step-by-step explanation:

hope it helps

Answer: It finished at 3:15

Step-by-step explanation: The party starts at 2:00 + 1 hours= 3:00 + 15 minutes= 3:15

Greetings from Brasil....

According to the statement of the question, we have:

isolating X we get

X = 8

Let the number of children who rode the bus be C and the number of adults who rode the bus be A. Here's how to solve this problem:

Step-by-step explanation: We are given the following information:

Total number of passengers = 1000 Children's fare = $0.50. Adult fare = $1.75. Total revenue from fares = $1500. Let C be the number of children who rode the bus during the morning shift. Therefore, the number of adults who rode the bus will be (1000 - C). The total revenue from fares is given as:$0.50 × C + $1.75 × (1000 - C) = $1500. Simplifying this equation gives us: 0.5C + 1750 - 1.75C = 1500-1.25C = -250C = 200. Therefore, the number of children who rode the bus is C = 200. Therefore, the number of adults who rode the bus is:1000 - C = 1000 - 200 = 800.

Therefore, the number of adults who rode the bus during the morning shift is 800.

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Answer: P= -60

Step-by-step explanation:

5/6p +1=3/4p -4

5/6p=3/4p-4.       Subtract 1 from both sides

5p=9/2p-30.        Trick( if there is a fraction multiply the denominator on both sides to make it a non fraction so life is easier, as I did I first multiply by 6)

10p=9p-60.           multiply the second denominator on both sides(multiple by 2)

P=-60.                     Subtract 9p on both sides and keep the sign and you’ll get -60

400 grams of gasoline corresponds to a volume of approximately 601.50 mL when spilled into the puddle of water.

To determine the volume of gasoline spilled, we can use the given density of gasoline and the mass of the spilled gasoline.

Mass of gasoline = 400 grams

Density of gasoline = 0.665 g/mL

We can use the formula:

Density = Mass / Volume

Rearranging the formula to solve for Volume, we have:

Volume = Mass / Density

Substituting the values into the formula, we get:

Volume = 400 grams / 0.665 g/mL

To obtain the volume in milliliters (mL), we divide the mass by the density.

Volume = 601.50 mL

Therefore, 400 grams of gasoline corresponds to a volume of approximately 601.50 mL when spilled into the puddle of water.

It is important to note that gasoline and water do not mix due to their differing polarities.

Gasoline, being a non-polar liquid, is less dense than water, causing it to float on the surface.

This characteristic makes it important to take necessary precautions in handling and cleaning up gasoline spills to prevent environmental contamination and ensure safety.

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a) The derivative of the natural rate of unemployment with respect to f is equal to 1. b) An increase in the job separation rate (s) will directly increase the natural rate of unemployment (un). c)  The net effect is a combined increase in the natural rate of unemployment when both f and s increase.

a) To differentiate the equation for the natural rate of unemployment (un = s + f), we need to find the derivative with respect to f.

Taking the derivative of un with respect to f:

d(un) / df = d(s + f) / df

          = df / df  (since the derivative of a constant term s with respect to f is zero)

          = 1

The derivative of the natural rate of unemployment with respect to f is equal to 1. This means that an increase in the job-finding rate (f) will directly increase the natural rate of unemployment (un). As f increases, the rate at which unemployed individuals find new jobs increases, leading to a higher overall rate of unemployment.

b) Similarly, to differentiate the equation for the natural rate of unemployment (un = s + f) with respect to s, we find:

d(un) / ds = d(s + f) / ds

          = ds / ds  (since the derivative of a constant term f with respect to s is zero)

          = 1

The derivative of the natural rate of unemployment with respect to s is also equal to 1. This means that an increase in the job separation rate (s) will directly increase the natural rate of unemployment (un). As s increases, the rate at which employed individuals lose their jobs increases, leading to a higher overall rate of unemployment.

c) The net effect on the natural rate of unemployment of increases in both f and s can be determined by summing up the individual effects. Since the derivatives of un with respect to f and s are both 1, the net effect is the sum of the effects of each variable.

Increase in f: This directly increases the natural rate of unemployment.

Increase in s: This also directly increases the natural rate of unemployment.

Therefore, the net effect is a combined increase in the natural rate of unemployment when both f and s increase. The two factors, job separation rate (s) and job-finding rate (f), contribute independently to the overall rate of unemployment, and an increase in either factor leads to a higher natural rate of unemployment.

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Ans .: Interval of one standard deviation from the mean = 63.5 to 90.5.

To find the interval of one standard deviation from the mean for this sample, we need to first calculate the mean and standard deviation.

The mean is found by adding up all the numbers in the sample and dividing by the total number of numbers:

(61 + 69 + 69 + 74 + 85 + 87 + 97) / 7 = 77

So the mean is 77.

To find the standard deviation, we need to calculate the variance first. The variance is found by subtracting each number in the sample from the mean, squaring the result, adding up all the squared results, and dividing by the total number of numbers:

((61-77)^2 + (69-77)^2 + (69-77)^2 + (74-77)^2 + (85-77)^2 + (87-77)^2 + (97-77)^2) / 7 = 183.43

So the variance is 183.43.

The standard deviation is the square root of the variance:

√183.43 ≈ 13.5

So the standard deviation is approximately 13.5.

To find the interval of one standard deviation from the mean, we need to subtract and add the standard deviation to the mean:

77 - 13.5 = 63.5

77 + 13.5 = 90.5

So the interval of one standard deviation from the mean for this sample is approximately 63.5 to 90.5.

We round the non-integer results to the nearest tenth, so the final answer is:

Interval of one standard deviation from the mean = 63.5 to 90.5.

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