Graping the line.
Please reply fast!!

Answer:

why does it say right twice? ...

If the area of rectangle abcd is 16in² and the area of the rectangle a’b’c’d’ is 64in², the scale factor used to dilate the rectangle was 2.

When a rectangle is dilated, its dimensions are multiplied by a common factor known as the scale factor. The scale factor is the ratio of the corresponding sides of the original rectangle and the dilated rectangle.

Let the scale factor be represented by k. The area of the original rectangle is 16 in², so we can write:

length x width = 16

Let L and W represent the length and width of the original rectangle, respectively. Therefore, we have:

LW = 16

After dilation, the area of the new rectangle is 64 in². The length and width of the new rectangle are kL and kW, respectively. Therefore, we can write:

(kL)(kW) = 64

Simplifying the above equation, we get:

k²LW = 64

Substituting the value of LW from the first equation, we get:

k²(16) = 64

Solving for k, we get:

k = √4 = 2

This means that the length and width of the new rectangle are twice the length and width of the original rectangle.

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Answer:

p(- 3) = - 79

Step-by-step explanation:

Substitute x = - 3 into p(x) , that is

p(- 3) = 4(- 3)³ + 2(- 3)² - 3(- 3) + 2

        = 4(- 27) + 2(9) + 9 + 2

       = - 108 + 18 + 11

      = - 108 + 29

     = -  79

The values that are used in the box plot are:

A - Median

D - Q1

E - Minimum

F - Q3

G - Maximum

The stated question is related to the topic Statistics from maths.

The box plot is a five number set of data . The numbers are as stated above median , Q1 , minimum , Q3 and maximum .

The plotting of box plot is done as follows :

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Complete question

The scores on an exam have mean = 110, standard deviation = 15, minimum = 69 , Q1 =87, median = 94 , Q3 = 117, and maximum = 128.

State which of these values are used in a box plot ? Select all that apply

A. median

B. mean

C. standard deviation

D. Q1

E. minimum

F. Q3

G. maximum

The solution to the system of equations is given as follows:

(4, -6).

The system of equations for this problem is defined as follows:

To solve the system of equations by graphing, we must obtain the point of intersection of the two equations.

From the image given at the end of the answer, the solution to the system of equations is given as follows:

(4, -6).

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Answer:

x = 2

Step-by-step explanation:

Firstly, calculate the area of the rectangle with the formula:

Length x width = area

(x+6) * 3 = 3x + 18

The formula for the area of a triangle is:

\(\frac{1}{2} * b * h\)

We can plug the known variables into the equation and get:

\(\frac{1}{2} * 8 * (x+4)\)

4 * (x + 4)

4(x + 4)

4x + 16

As the two areas are the same:

4x + 16 = 3x + 18

Subtract 3x from both sides of the equation:

4x + 16 - 3x = 3x + 18 - 3x

x + 16 = 18

Subtract 16 from both sides of the equation:

x + 16 - 16 = 18 - 16

x = 2

Hope this helps!

Based on the table showing the percentage of households playing games over the net, the average rate of change from 1999 to 2003 is 3.9% per year.

This can be found as:

= (27.9 - 12.3) / 4 years

= 3.9% per year

In 2000, the instantaneous rate of change would be:

= (Rate in 2001 - Rate in 1999) / difference in years

= (24.4 - 12.3) / (2001 - 1999)

= 6.05%

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To find the mean, you need to add up every number, and then divide your solution by how many numbers you had to add:

5 + 7 + 4 + 7 + 7 + 6 + 7 + 8 + 8 + 4 + 5 + 8 + 6 + 7 + 5 + 6 + 5 + 8 = 113

Then, divide the 113 by the amount of numbers you just added which is: 18.

113 divided by 18 = 6.27; rounded to the nearest tenth would be 6.3.

To find the median, we have to find the number in the middle of the set:

5 + 7 + 4 + 7 + 7 + 6 + 7 + 8 + 8 + 4 + 5 + 8 + 6 + 7 + 5 + 6 + 5 + 8

The 4 is the median.

To find the mode, we have to find what number comes most in the sequence. This number would be 7 coming in at 5 times.

I hope my answer helped you! If you need more information or help, comment down below and I will be sure to respond if I am online. Have a wonderful rest of your day!

Answer:

Step-by-step explanation:

List of numbers:

5, 7, 4, 7, 7, 6, 7, 8, 8, 4, 5, 8, 6, 7, 5, 6, 5, 8

There are 18 numbers for 18 years

To find Median:

The median is the average.  Add up all of the numbers, and divided by how many numbers there are, 18

Median = (5 + 7 + 4 + 7 + 7 + 6 + 7 + 8 + 8 + 4 + 5 + 8 + 6 + 7 +5 +6+ 5+8) / 18

Median = 113 / 18

Median = 6.3

To find Mode:

Mode is the number that occurs the most

There are two 4's

There are four 5's

There are three 6's

There are five 7's

There are four 8's

There are the most 7's, so 7 is your mode

To find Median:

To find the Median, list the numbers in order from smallest to largest.  The number in the middle is your median.  If the there is not middle number then take the average of the two middle numbers.

4   4   5   5   5   5   6   6   6   7   7   7   7   7   8   8   8   8

                                             |

The line is where the middle of the numbers are.  You must take the average of 6 and 7 to find the median.

Median = (6+7) / 2

Median = 13/2

Median  = 6.5

The probability that the mean play time in a random sample of 100 songs is less than 240 seconds is 0.0004 (rounded to 4 decimal places).

To calculate the probability that the mean play time in a random sample of 100 songs is less than 240 seconds, we need to know the population mean and standard deviation. Let's assume that the population mean is 250 seconds and the standard deviation is 30 seconds.

Using the central limit theorem, we can assume that the distribution of the sample means follows a normal distribution with a mean of 250 seconds and a standard deviation of 30/√(100) = 3 seconds.

To find the probability that the mean play time in a random sample of 100 songs is less than 240 seconds, we need to standardize the value using the formula:

Z = (X - μ) / (σ / √(n))

where X is the sample mean, μ is the population mean, σ is the population standard deviation, and n is the sample size.

Plugging in the values, we get:

Z = (240 - 250) / (3)

Z = -3.33

Using a standard normal distribution table or calculator, we can find the probability of Z being less than -3.33 is approximately 0.0004.

Therefore, the probability that the mean play time in a random sample of 100 songs is less than 240 seconds is 0.0004 (rounded to 4 decimal places).

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Answer:

To find the number of green apples he bought, We do the following:

Answer:

20 seconds

Step-by-step explanation:

Alarm 1 = every 10 seconds

Alarm 2 = every 5 seconds

Alarm 3 = every 4 seconds

If they all go off at the same time due to a loud clap of thunder, how long will it take until they all sound at the same time again?

To determine how long it will take until they all sound at the same time again, find the lowest common multiple of the three alarm

Alarm 1 (every 10 seconds) = 20, 30, 40, 50, 60, 70, 80, 90,

Alarm 2 (every 5 seconds) = 10, 15, 20, 25, 30, 35, 40, 45, 50

Alarm 3 (every 4 seconds) = 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48

The lowest common multiple of Alarm 1 (every 10 seconds), Alarm 2 (every 5 seconds) and Alarm 3 (every 4 seconds) is 20 seconds

Therefore, they will all sound at the same time again in the next 20 seconds

Answer:

x = 8

Step-by-step explanation:

since the triangle is isosceles then the 2 legs are congruent, that is both 4x - 3

the perimeter is the sum of the 3 sides , that is

x + 4x - 3 + 4x - 3 = 66

9x - 6 = 66 ( add 6 to both sides )

9x = 72 ( divide both sides by 9 )

x = 8

Answer:

Step-by-step explanation:

m∠2 = 180 - 140

m∠2 = 40°

Answer:

m∠2 = 40°

Step-by-step explanation:

Answer:

Non-Linear

Step-by-step explanation:

it looks to be more of a "U" or "V" shape. :)

Answer: by gamelover

commission of each accessory = $2

commission of each phone = $9

Given:

Commission on 18 phones and 21 accessories = $204 commission on 6 phones and 14 accessories = $82.

To find:

the price of each phone and the price of each accessory.

Solution:

let the commission of each phone be P and the accessory be A.

according to the question,

18P + 21A = 204

6P + 7 A = 68 -----i

6P + 14 A = 82 ------ii

by substitution of i in equation ii,

68 - 7A + 14A = 82

7A = 14

A = 2

commission of each accessory = $2

to find the commission on each phone:

6P + 7 x 2 = 68

6P = 54

P= 9

commission of each phone = $9

Hence, the required answers are 2 and 9.

Answer:

D- 5hrs

Step-by-step explanation:

If the family can hike 3 miles per hour,
for 15 miles: 15/3 = 5 hours.

Every hour they cover 3 miles per hour, so to cover 15 miles, they will take 5 hours

Answer:

D. 5 hours

Step-by-step explanation:

3 miles per 1 hour so 3/1

15 miles per x hours so 15/x

3/1 = 15/x or 3 = 15/x

get x by itself so

3 divided by 3 and 15 divided by 3

x = 5 hours

The pharmacy should send two pills marked  for the patient to take.

To answer this question, we can use the formula below;

Dosage = (Amount of Drug x Patient's Weight) / Time

Since we don't have any information about the patient's weight or the time, we can't calculate the dosage.

However, we can calculate the number of pills required.

So, let's proceed with the calculation.

Each pill contains 2.5 mg of the pain reliever.

We need to administer a low dose, so let's assume the dose required is 5 mg.

To administer this dose, we need to give two pills, i.e., 2 x 2.5 = 5mg.

However, the question asks us to round the answer to the nearest tenth of a pill.

Since we can't divide a pill into parts, we need to round the answer up or down to the nearest whole pill.

In this case, since we need two pills, the answer is 2 pills.

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Answer

slope of 4x - 5: m = 4

Answer: 8.4

Step-by-step explanation: 5.25 divided by 5 is 1.05. So 1.05 x 8 is 8.4

The polygon presented will have nine sides. This suggests that a nonagon is the necessary polygon.

Divide the number of triangles in the polygon by 180° to determine the sum of its inner angles. Where is the number of sides, the formula for computing the sum of internal angles is (n 2) 180. In a regular polygon, all internal angles are equal.

The following are crucial polygon formulas: A polygon with "n" sides has a total interior angle sum of 180 degrees (n-2) A "n-sided" polygon has [n(n-3)]/2 diagonals. A regular n-sided polygon's internal angles are measured as [(n-2)180°]/n.

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Answer:

Step-by-step explanation:

As a result, for the same data set, a 99% confidence interval would have a greater margin of error than a 90% confidence interval.

Answer: If a 90% confidence interval is constructed based on a sample of data, and it is 74% + 3%, a 99% confidence interval based on this same sample of data would have a larger margin of error and probably a different center.

What is a confidence interval? A confidence interval is a statistical technique used to establish the range within which an unknown parameter, such as a population mean or proportion, is likely to be located. The interval between the upper and lower limits is called the confidence interval. It is referred to as a confidence level or a margin of error.

The confidence level is used to describe the likelihood or probability that the true value of the population parameter falls within the given interval. The interval's width is determined by the level of confidence chosen and the sample size's variability. The confidence interval can be calculated using the standard error of the mean (SEM) formula

.A 90% confidence interval indicates that there is a 90% chance that the interval includes the population parameter, while a 99% confidence interval indicates that there is a 99% chance that the interval includes the population parameter.

When the level of confidence rises, the margin of error widens. The center, which is the sample mean or proportion, will remain constant unless there is a change in the data set. Therefore, alternative A is the correct answer.

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As a result, the solid's volume in the first octant, which is restricted by the paraboloid z = 4 + 2 x + 2 y, is 9.

We must determine the limits of integration for x, y, and z in order to determine the volume of the solid in the first octant bounded by the paraboloid z = 4 + 2x + 2y + 2 and the plane z = 10.

At z = 10, where the paraboloid and plane overlap, we put the two equations equal and find z:

4 + 2x^2 + 2y^2 = 10

2x^2 + 2y^2 = 6

x^2 + y^2 = 3

This is the equation for a circle in the xy plane with a radius of 3, centred at the origin. We just need to take into account the area of the circle where x and y are both positive as we are only interested in the first octant.

Integrating over the circle in the xy-plane, we may determine the limits of integration for x and y:

∫∫[x^2 + y^2 ≤ 3] dx dy

Switching to polar coordinates, we have:

∫[0,π/2]∫[0,√3] r dr dθ

Integrating with respect to r first gives:

∫[0,π/2] [(1/2)(√3)^2] dθ

= (3/2)π

So the volume of the solid is:

V = ∫∫[4 + 2x^2 + 2y^2 ≤ 10] dV

= (3/2)π(10-4)

= 9π

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the answer is a . im in highschool and i am a pro at this bc i learned this in 6th grade so trust me its right

Answer:

B. yes it is uwu because it can and I don't know what I'm doing in just doing this for fun

Answer:

let ratio 6:4:2 be 6x,4x and 2x

we have

6x+4x+2x=180 sum of interior angle of the triangle is 180

12x=180

x=180/12=15

Step-by-step explanation:

missing Angle are

6x=6×15=90°

4x=4×15=60°

2x=2×15=39°

Answer:

Step-by-step explanation:

The probability of at least one of your 10 lottery tickets being a winner is approximately 0.638 or 63.8%.

The probability of winning on a single lottery ticket is 1/8, which means that the probability of not winning is 7/8. If you buy 10 of these lottery tickets, the probability of not winning on any of them is:

(7/8)^10 = 0.362

This means that there is a 36.2% chance that none of your tickets will be a winner. To find the probability that at least one of your tickets will be a winner, we can use the complementary probability:

P(at least one winner) = 1 - P(no winners)

P(at least one winner) = 1 - 0.362

P(at least one winner) = 0.638

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