Pls help!! ASAP!!!!

Figure ABCD is reflected about the y-axis to obtain figure A′B′C′D′:

A coordinate plane is shown. Figure ABCD has vertices A at 2 comma 5, B at 1 comma 2, C at 3 comma 1, and D at 4 comma 5. Figure A prime B prime C prime D prime has vertices A prime at negative 2 comma 5, B prime at negative 1 comma 2, C prime at negative 3 comma 1, and D prime at negative 4 comma 5.
Which statement best describes the relationship between the two figures? (4 points)

Figure ABCD is similar to figure A′B′C′D′.
Figure ABCD is bigger than figure A′B′C′D′.
The measure of angle D is equal to the measure of angle A′.
The measure of angle D is equal to the measure of angle B′.

Answer:

8.2 units

Step-by-step explanation:

Given that the only information for our triangle are 2 sides and 1 angle, we must use the Law of Cosines to find side BC

Recall the Law of Cosines

\(a^2=b^2+c^2-2bc\cdot cos(A)\)

Identify angles and sides

\(m\angle A=23^\circ\\a=BC=?\\b=AC=14\\c=AB=6\)

Solve for side "a"

\(a^2=b^2+c^2-2bc\cdot cos(A)\\\\a^2=14^2+6^2-2(14)(6)\cdot cos(23^\circ)\\\\a^2=196+36-168cos(23^\circ)\\\\a^2=222-168cos(23^\circ)\\\\a=\sqrt{222-168cos(23^\circ)}\\ \\a\approx8.2\)

Therefore, the length of line segment BC is about 8.2 units

Answer:

the answer is 8.2 units

Step-by-step explanation:

wait wait wait change my mind change my mind ill take champ back you didnt say nothin bout it meanin brave

Answer:

10 shelves

Step-by-step explanation:

out of the other choices, 10 is most suitable to divide with 80

Answer:

$405

Step-by-step explanation:

SI=PTR/100

=9*1*750/100

=$ 67.50

In 6 yrs= 67.50*6

=$405

Answer:

The answer is $1087.50

I got it wrong because someoneeeeeee didnt give the right answer (2 people to be exact)

Answer:

60 ft

Step-by-step explanation:

a² + b² = c²

20² + 15² = c²

c = √625

c = 25

total distance = 20 ft + 15 ft + 25 ft = 60 ft

A "pair of 3" is not a commonly used term.

A set of 3 numbers can be called a triplet, or a set of 3 items can be called "a set of three".

Please let me know if you want me to clarify about something else.

Answer:

x = -3, x = 0 is a extraneous solution

Step-by-step explanation:

Step 1: Cross-multiply

3x² = 4x² + 3x

Step 2: Isolate x's

0 = x² + 3x

Step 3: Factor

0 = x(x + 3)

Step 4: Find roots

x = 0, -3

Step 5: Double check work

Plug in both to see if they both work. Only x = 0 should be extraneous. We now have our answer!

Answer:

x = -3, x = 0 is a extraneous solution

Step-by-step explanation:

the person above is correct

Answer:

12

Step-by-step explanation:

P = (x% * y)

P = (5% * 240)

p = 5/100 = 0.05

P = (0.05 * 240)

P = 12

Answer:

12%

Step-by-step explanation:

5 percent *240

= (5/100)*240

= (5*240)/100

= 1200/100 = 12

If we add any constant term in the variable then the standard deviation remains same. So it is not change.

In the given question, d is the standard deviation of x, y, and z.

We have to find the standard deviation of x+5, y+5, and z+5.

As we know that;

Data distribution in reference to the mean is measured by a standard deviation, or. Samples are said to be more narrowly collected around the mean when the standard deviation is minimal and more dispersed when the standard deviation is higher.

While a high or low standard deviation implies that data points are, respectively, above or below the mean, a standard deviation that is close to zero suggests that data points are, on the other hand, relatively close to the mean.

If we see that in each variable x, y, z a constant value 5 is added.

If we add any constant term in the variable then the standard deviation remains same. So it is not change.

To learn more about standard deviation link is here

brainly.com/question/29088233

#SPJ4

The right question is:

If d is the standard deviation of x, y, and z, what is the standard deviation of x+5, y+5, and z+5?

The correct option regarding the linear regression equation is:

No, the equation is not a good fit because the sum of the residuals is a large number.

To find the equation, we need to insert the points (x,y) in the calculator.

In possession of the equation, the residuals are given by the difference of the predicted values(with the equation) and the actual values.

The model represents a good fit if the sum of the residuals is close to 0.

For this problem, the sum of the residuals is given by:

90 - 50  - 100 - 100 + 150 - 50 = -60.

The sum is a large number, hence the model is not a good fit.

More can be learned about linear regression at https://brainly.com/question/22992800

#SPJ1

Answer:

Therefore Martin uses his power saw 4 times in one hour

Answer:

60/15=4

Step-by-step explanation:

He uses his power saw every 15 that inside of an hour is 4 because when you do the division its going to = 4

Answer:1, 5

Step-by-step explanation:

divide the expression to get your answer then divide the choices on the right. find the ones with the same answer.

Answer:

7,610/50

.761/.005

Step-by-step explanation:

Compare both expressions' sums and check them off.

The correct option is c) The purpose of using a sample and calculating a mean is to estimate the mean of the population.

When we take a sample from a larger population, it is often impractical or impossible to measure or observe every individual in the population. Instead, we select a subset of individuals, known as a sample, and collect data from them.

By calculating the mean of the sample, we obtain an estimate of the population mean.

The sample mean is considered an unbiased estimator of the population mean, meaning that, on average, it will be equal to the population mean.

By using the sample mean, we can make inferences about the population mean and draw conclusions about the larger population based on the characteristics observed in the sample.

Therefore, the correct option is C). The primary purpose of calculating a mean from a sample is to estimate the mean of the population.

To know more about mean refer here:

https://brainly.com/question/30112112#

#SPJ11

The determinants det a and det(5a) are related by a scalar multiplication of 5^n, where n is the dimension of the matrix a. In other words, det(5a) = (5^n) det a. This is because multiplying a matrix by a scalar multiplies its determinant by the same scalar raised to the power of the matrix's dimension.

For the second part of the question, the determinants det A and det B are related by det B = (2*3*5) det A = 30 det A. This is because multiplying a row of a matrix by a scalar multiplies its determinant by the same scalar, and multiplying a matrix by a scalar multiplies its determinant by the same scalar raised to the power of the matrix's dimension.

The determinant of a matrix represents the scaling factor of the matrix's transformation on the area or volume of the space it is operating on. Scalar multiplication of a matrix by a scalar s multiplies its determinant by s^n, where n is the dimension of the matrix. This is because the determinant is a linear function of its rows (or columns), and multiplying a row (or column) by a scalar multiplies the determinant by the same scalar.

For the second part of the question, we can use the fact that the determinant of a matrix is unchanged under elementary row operations, and that multiplying a row of a matrix by a scalar multiplies its determinant by the same scalar. We can therefore multiply the first row of A by 2, the second row by 3, and the third row by 5 to obtain B. This multiplies the determinant of A by the product of the three scalars, which is 2*3*5 = 30.

In summary, the determinants of a matrix and its scalar multiple are related by a power of the scalar equal to the dimension of the matrix. Additionally, the determinant of a matrix is multiplied by the product of the scalars used to multiply each row (or column) of the matrix when performing elementary row operations.

To know more about matrix visit:

https://brainly.com/question/29132693

#SPJ11

Answer:

4

Step-by-step explanation:

Let's start by assuming that the initial mass of the hydrate CoCl2 x XH2O is 100 grams. This means that the mass of the anhydrous compound CoCl2 after decomposition is 53.9 grams (since it is 53.9% of the hydrate mass).

The mass of water lost during the decomposition is therefore:

Mass of water lost = Initial mass of hydrate - Mass of anhydrous compound

Mass of water lost = 100 g - 53.9 g

Mass of water lost = 46.1 g

The molar mass of CoCl2 is 129.8 g/mol, and the molar mass of H2O is 18.0 g/mol. Therefore, the molar mass of the hydrate CoCl2 x XH2O is:

Molar mass of hydrate = Molar mass of CoCl2 + Molar mass of H2O × X

Molar mass of hydrate = 129.8 g/mol + 18.0 g/mol × X

We can set up a proportion to solve for X:

Mass of water lost / Molar mass of water = X / Molar mass of hydrate

Plugging in the values we found:

46.1 g / 18.0 g/mol = X / (129.8 g/mol + 18.0 g/mol × X)

Solving for X:

46.1 g / 18.0 g/mol = X / (129.8 g/mol + 18.0 g/mol × X)

2.56 mol = X / (129.8 g/mol + 18.0 g/mol × X)

2.56 mol × (129.8 g/mol + 18.0 g/mol × X) = X

331.968 g/mol × X + 46.368 g/mol × X = X

378.336 g/mol × X = X

X = 4

Therefore, the value of X in the hydrate formula CoCl2 x XH2O is 4, and the formula of the hydrate is CoCl2 x 4H2O.

The little square means a right angle which is equal to 90 degrees.

X + 30 = 90

X = 60 degrees

Answer:

Side Angle Side

Step-by-step explanation:

There are different types of FPGA architectures. FPGAs have a wide range of applications in various fields, including:

1) Digital Signal Processing (DSP):

FPGAs are commonly used for implementing digital filters, audio and video processing, image compression, and other DSP algorithms. The parallel processing capabilities of FPGAs make them well-suited for real-time signal processing applications.

2) High-Performance Computing (HPC):

FPGAs can be used to accelerate computationally intensive tasks in HPC systems. They can be customized to perform specific computations, such as encryption, decryption, and data compression.

3) Embedded Systems:

FPGAs are often used in embedded systems for implementing complex control logic, interfacing with different peripherals, and integrating multiple functions into a single chip.

4) Aerospace and Defense:

FPGAs are extensively used in aerospace and defense applications due to their reconfigurability, reliability, and radiation tolerance. They are employed in radar systems, communication systems, avionics, and military-grade encryption.

To know more about FPGA visit :

https://brainly.com/question/30434774

#SPJ11

Answer:

Assuming you are asking how to do it you would first move the point on the graph to the left 3 units going towards the negative qudrant. Afterwards, you would move the point you just moved upwards 2 in this case.

Step-by-step explanation:

Answer:

6x+y=36

Step-by-step explanation:

6x - A rose is $6 and you do not know how many she will buy so you would put an "x" after that symbolizing how many she will buy.

y - Carnations cost $1 and the amount purchased is unknown so you would use "y". Because they cost 1 dollar, you will not need to add 1 in front of "y" because "y" by itself is already known as one variable.

36 - The total cost of the arrangement is ultimately going to be $36

the approximate percentage of lightbulb replacement requests numbering between 53 and 63 is 68%.

The 68-95-99.7 rule, also known as the empirical rule, states that for a normal distribution:

- Approximately 68% of the data falls within one standard deviation of the mean.

- Approximately 95% of the data falls within two standard deviations of the mean.

- Approximately 99.7% of the data falls within three standard deviations of the mean.

In this case, we have a bell-shaped distribution of the number of daily requests for lightbulb replacement, with a mean of 53 and a standard deviation of 10.

To find the approximate percentage of lightbulb replacement requests numbering between 53 and 63, we need to calculate the area under the curve between these two values.

Since the mean is 53 and the standard deviation is 10, the range of interest falls within one standard deviation above the mean (63) and one standard deviation below the mean (43).

Using the empirical rule, we know that approximately 68% of the data falls within this range.

Therefore, the approximate percentage of lightbulb replacement requests numbering between 53 and 63 is 68%.

to know more about  percentage visit:

brainly.com/question/16797504

#SPJ11

Answer:

11.25 miles

Step-by-step explanation:

To figure out how many miles John will travel in 1/2 an hour, we can use the following formula:

distance = rate x time

We know the rate, which is the number of miles John can travel per hour. We can find this by dividing the total distance by the total time:

rate = distance / time

rate = 45 miles / 2 hours

rate = 22.5 miles per hour

Now we can use this rate and the given time of 1/2 an hour to find the distance:

distance = rate x time

distance = 22.5 miles per hour x 1/2 hour

distance = 11.25 miles

Therefore, John will travel 11.25 miles in 1/2 an hour at this rate.

Answer:

Step-by-step explanation:

By geometric mean theorem,

In a triangle ABC,

\(\frac{BC}{AC}=\frac{CD}{BC}\)

\(\frac{y}{(4+6)}=\frac{6}{y}\)

y² = 60

y = √60

y = 7.75

Similarly, \(\frac{AB}{AC}=\frac{AD}{AB}\)

\(\frac{x}{(4+6)}=\frac{4}{x}\)

x² = 40

x = √40

x = 6.32

Answer:

A. 12.5 cups of coffee

B. 6.96 cups of milk

Those are the only ones I have the brain power to do so..........

Hope this helped!!!

The number after using rational exponents will be 2✓2.

The major rational properties are commutative property, closure property, associative property and distributive property. To solve this question, the rational property to be used is :

\( \sqrt[n]{ab} = \sqrt[n]{a} \times \sqrt[n]{b} \)

As per the known fact, we can write 8 as 2²×2. So, Number = ✓2²×2

Using rational property we will rewrite this number as -

Number = ✓2² × ✓2

Solving the square root

Number = 2✓2

Therefore, as per the rational property we can write the number as 2✓2.

Learn more about rational property -

https://brainly.com/question/27470882

#SPJ9

Answer:

16 inches per hour.

Step-by-step explanation:

We want a unit rate where

1 is in the denominator,

so we divide top and bottom by 5

The proportion of the variation in the dependent variable y that is explained by the estimated regression equation is measured by the coefficient of determination.

What is coefficient of determination?

The effectiveness of a statistical model in forecasting a result is shown by the coefficient of determination (R²). The dependent variable in the model is a representation of the result.

R² can have a value of 0 or 1, with 1 being the maximum achievable. Simply said, a model's R² will be closer to 1 the more accurate its predictions are.

R² is a more precise measure of goodness of fit. The amount of volatility in the dependent variable that the model can account for.

You can typically tell whether your linear regression data's R² is high or low by graphing it. The graphs below, for instance, display two sets of simulated data:

Dots represent the observations.

The line of best fit, or predictions of the model, is displayed as a black line.

Purple lines represent the deviations (the residuals) between the data and their expected values.

To learn more regression equation, click on below link:

https://brainly.com/question/14184702

#SPJ4

Answer:

Step-by-step explanation:

Vertically opposite angles are congruent.

∠A = ∠C

∠A + ∠C = 254

∠A + ∠A = 254

      2∠A = 254

        ∠A = 254/2

∠A = 127

Linear Pair: In two adjacent angles, if the non common arms are opposite  rays, then they are called linear and they add up to 180

∠A + ∠B = 180  {linear pair}

127 + ∠B = 180

        ∠B = 180- 127

        ∠B = 53°

Answer: 81.98274589 is what i got but it will be 81 hope this helped

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

I think its B but dont trust my math lol xd

Answer:

B

Step-by-step explanation:

5 and one-third units

Answer:

to find the sons shadow you would simply multiply the length of his body by 2, therefore his shadow would be 2 meters long

The height of shadow is 2 meter long.

We have,

The father is 2 meters tall and casts a shadow 4 meters long.

let the length of shadow be x.

Using proportion

2/4 = 1/ x

2x = 4

x =4 /2

x = 2 meter

Thus, the height is 2 meter tall.

Learn more about Proportion here:

https://brainly.com/question/29774220

#SPJ2