What does the 12 and 5 represent?

Answer:

-335

Step-by-step explanation

5x3=15

5x70=350

15-350= -335

since there is no b in your question this is the answer but if there is I  might edit this

The exponential regression equation of the census predicts the number of unoccupied homes

The exponential regression equation is y = 5.247256 * 1.033157^x

The dataset is given as:

x      y

0     5.3

10    7.3

20   9.7

30   14.3

To determine the exponential regression equation, we make use of a graphing calculator.

The calculation summary from the graphing calculator are:

Hence, the exponential regression equation is y = 5.247256 * 1.033157^x

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Answer: triangleDEF - 3 units down

triangleGHI - 5 units left

triangleJKL - 4 units left and 5 units down

Step-by-step explanation:

Simplifying this expression, we have:

Answer:

Step-by-step explanation:

-3

Answer:

b

Step-by-step explanation:

when I muiltply an and divide. if there are two negatives it makes a positive an if there jus one it's a negative

The radian measure of the angle at the center of the circle is approximately 1.6623 radians.

We are given that the radius of the circle is 77.0 cm and the length of the intercepted arc is 128 cm. We need to find the radian measure of the angle at the center of the circle.

To solve this problem, we use the formula relating the angle at the center of a circle, the radius of the circle, and the arc length intercepted by the angle.

The formula is given byθ = s/rwhereθ = angle at the center of the circle in radians s = arc length intercepted by the angle r = radius of the circle Substituting the given values, we getθ = 128/77.0 = 1.6623 radians (rounded to four decimal places)

Therefore, the radian measure of the angle at the center of the circle is approximately 1.6623 radians.

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Without specific information about the data set, it is not possible to determine which equation is the best fit.

To determine the linear function equation that best fits the data set, we need more information about the data set itself. Without the data points or any other details, we cannot accurately determine which linear function equation is the best fit.

However, I can provide a general explanation of the four options:

y = -2x + 5: This is a linear equation with a negative slope of -2. It represents a line that decreases as x increases. The y-intercept is 5.

y = 2x + 5: This is a linear equation with a positive slope of 2. It represents a line that increases as x increases. The y-intercept is 5.

y = -1/2x + 5: This is a linear equation with a negative slope of -1/2. It represents a line that decreases at a slower rate as x increases. The y-intercept is 5.

y = 1/2x - 5: This is a linear equation with a positive slope of 1/2. It represents a line that increases at a slower rate as x increases. The y-intercept is -5.

Without specific information about the data set, it is not possible to determine which equation is the best fit. The best fit would depend on how well the equation aligns with the actual data points.

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Answer: 6

Step-by-step explanation:

Answer:

x=20 degrees

Step-by-step explanation:

So, lets recall some things.

First off, opposite angles are the same.

So this would make x equal 20.

But lets test this.

When you look at a X, or any other sort of two lines that cross each other, can you ever think of a time when one side is not the same as the other? No.

This is because when you change one angle, since the lines are crossed together, it will change the opposite angle. This change will always be constant as long as the two lines connect at the same point

So if you changed a 10 degree angle of two lines, so that it was 30, this would change for the other line.

I attached a image below.

I hope this explains this to you and helps! :D

==================================================================

Respuesta:

x = 20 grados

Explicación paso a paso:

Entonces, recordemos algunas cosas.

En primer lugar, los ángulos opuestos son iguales.

Entonces esto haría que x sea igual a 20.

Pero probemos esto.

Cuando miras una X, o cualquier otro tipo de dos líneas que se cruzan, ¿puedes pensar alguna vez en un momento en el que un lado no sea igual que el otro? No.

Esto se debe a que cuando cambia un ángulo, dado que las líneas se cruzan, cambiará el ángulo opuesto. Este cambio siempre será constante siempre que las dos líneas se conecten en el mismo punto

Entonces, si cambia un ángulo de 10 grados de dos líneas, de modo que sea 30, esto cambiaría para la otra línea.

Adjunto una imagen a continuación.

¡Espero que esto te explique esto y te ayude! :D

Answer:

December (A)

Step-by-step explanation:

The growth per month on average is 25 people, if you continue that through June-December she will reach 375 at December.

The derivative of arcsin(x/3) is\((3/sqrt(1-(x/3)^2))\). This can be derived by using the chain rule on arcsin(x/3) and simplifying.

The derivative of arcsin(x/3) can be derived by using the chain rule.

The chain rule states that the derivative of a function f composed with another function g is the derivative of f multiplied by the derivative of g.

Therefore, the derivative of arcsin(x/3) is

\(d/dx arcsin(x/3) = d/dx (x/3) * (1/cos(x/3))\)

Simplifying this expression, we get

\(d/dx arcsin(x/3) = (3/cos(x/3)) * (1/cos(x/3))\)

Which simplifies to

\(d/dx arcsin(x/3) = (3/cos^2(x/3))\)

Using the identity \(1/cos^2(x) = 1 + tan^2(x)\), we can rewrite this expression as

\(d/dx arcsin(x/3) = 3/sqrt(1-(x/3)^2)\)

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Answer:

y=\(-\frac{4}{3}\)x+2

Step-by-step explanation:

To write the equation for this line, we are going to use slope-intercept form, which is written as

y=mx+b.

Here are the meanings of each variable:

y= basically the "name" of the function and it always stays as y.

m= slope, which is rise over run.

x= variable that is always on the right of the slope and it always stays as x.

b= y-intercept, or the value that crosses the y-axis.

We will substitute numbers into the equation along the way. The first thing we will want to do is find b, which is the easiest.

The line crosses the y-axis at 2, so that is our value of b.

Our new equation is

y=mx+2.

Next, we will find the slope. The most efficient way of doing this is looking at the lowest point that is already provided, (3, -2), and finding a way to rise and run to the highest point, (0, 2).

If you look closely at the graph, we need to rise up 4 and run over -3 to get to the other point. Therefore, the slope is \(-\frac{4}{3}\), and we can substitute it into our equation, which is completed and is now

y=\(-\frac{4}{3}\)x+2

I hope this helps you out!! Have an awesome day ^^

Answer:

1.625 hours

Step-by-step explanation:

The equation is

d = rt  where d is distance  r is rate and t is time

65 = 40 *t

Divide each side by 40

65/40 = t

1.625 hours = time

Answer:

Two angles are complementary angles if the sum of their measures is 908.

Each angle is the complement of the other. Two angles are supplementary

angles if the sum of their measures is 1808. Each angle is the supplement of

the other.

Complementary angles and supplementary angles can be adjacent angles

or nonadjacent angles. Adjacent angles are two angles that share a common

vertex and side, but have no common interior points.

Step-by-step explanation:

it easy

The summary statistics provided are for three variables: CRIM (crime rate per capita), RM (average number of rooms per dwelling), and LSTAT (percentage of lower status of the population).

For CRIM:

- Minimum (Min.): 0.00632

- 1st Quartile (1st Qu.): 0.08204

- Median: 0.25651

- Mean: 3.61352

- 3rd Quartile (3rd Qu.): 3.67708

- Maximum (Max.): 88.97620

For NOX (nitric oxides concentration):

- Minimum (Min.): 0.3850

- 1st Quartile (1st Qu.): 0.4490

- Median: 0.5380

- Mean: 0.5547

- 3rd Quartile (3rd Qu.): 0.6240

- Maximum (Max.): 0.8710

For RAD (index of accessibility to radial highways):

- Minimum (Min.): Not provided

- 1st Quartile (1st Qu.): Not provided

- Median: Not provided

- Mean: Not provided

- 3rd Quartile (3rd Qu.): Not provided

- Maximum (Max.): Not provided

Comparing the summary statistics for CRIM, RM, and LSTAT, we can observe the following:

1. Range: CRIM has the widest range, with values ranging from 0.00632 to 88.97620. NOX has a range from 0.3850 to 0.8710, while the range for RAD is not provided.

2. Central Tendency: The mean and median can provide information about the central tendency of the variables. For CRIM, the mean (3.61352) is higher than the median (0.25651), indicating that the distribution of CRIM is positively skewed. In contrast, for NOX, the mean (0.5547) and median (0.5380) are relatively close, suggesting a relatively symmetrical distribution.

3. Quartiles: The quartiles provide information about the distribution of the variables. The 1st quartile (25th percentile) and the 3rd quartile (75th percentile) help identify the spread of the data. For example, in CRIM, the 1st quartile is 0.08204, and the 3rd quartile is 3.67708, indicating that 50% of the data falls between these values.

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The value of the probability of choosing a green lollipop and a purple lollipop is, 8 / 45

We have to given that;

One bag contains 3 red lollipops and 2 green lollipops.

And, The other bag contains four purple lollipops and five blue lollipops.

Hence, The probability of choosing a green lollipop is,

P₁ = 2 / 5

And, The probability of choosing a purple lollipop is,

P₂ = 4 / 9

Thus, The value of the probability of choosing a green lollipop and a purple lollipop is,

P = P₁ ×  P₂

P = 2/5 × 4/9

P = 8/45

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The absolute maximum value of the function g(x) = |x|−3|x 1| on the closed interval [-2,2] is 5. This is because the absolute value of x has its maximum value of 2 on the interval and the absolute value of x-1 has its maximum value of 3 on the same interval. Therefore, the maximum value of g(x) is 5

The function g(x) = |x|−3|x 1| is defined as the absolute value of x minus the absolute value of x minus 1. This means that the value of g(x) will always be negative or zero, depending on the value of x. On the closed interval [-2,2], the absolute value of x can range from 0 to 2, while the absolute value of x minus 1 can range from 1 to 3. Thus, the maximum value of g(x) on the interval is the difference between these two values, which is 5. This is because the absolute value of x is at its maximum of 2 and the absolute value of x minus 1 is at its maximum of 3 on the interval, so the difference between them is 5.

The absolute maximum value of function g(x) = |x|−3|x 1| on the closed interval [-2,2] can be calculated as follows:

First, let x = 2, then g(2) = |2|−3|2-1| = |2|−3|1| = 2−3 = -1

Second, let x = -2, then g(-2) = |-2|−3|-2-1| = |-2|−3|-3| = 2−3 = -1

Finally, let x = 0, then g(0) = |0|−3|0-1| = |0|−3|-1| = 0−3 = -3

Therefore, the absolute maximum value of g(x) is 5, which is obtained when x = 0

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Answer:

5:15 simplified as 1:3

Step-by-step explanation:

The value of the given expression is 65.

The given expression is (4-7i)(4+7i).

A complex number is the sum of a real number and an imaginary number. A complex number is of the form a + ib and is usually represented by z.

Here,

By using distributive property, we get

(4-7i)(4+7i)

= 4(4+7i)-7i(4+7i)

= 16 + 28i - 28i - 49i²

= 16 - 49(-1)

= 16 + 49

= 65

Therefore, the value of the given expression is 65.

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Answer:

a. One angle measures 90 degrees.

Matrix factorization is a method that reduces the dimensionality of a rating matrix, revealing latent factors and enabling clustering in recommendation systems and data analysis.

Matrix factorization is a popular technique used in recommendation systems and data analysis. Its basic intuition lies in decomposing a large rating matrix into lower-dimensional matrices, allowing for better understanding and utilization of the underlying data.

One key intuition is that matrix factorization provides a way to represent users and items in a shared low-dimensional space. By factorizing the rating matrix, we can identify latent factors or features that capture the preferences and characteristics of both users and items. These factors can be computed from the rating matrix and enable a compact representation of the data.

Another insight is that matrix factorization allows for clustering of users and items. By factoring the user and item matrices, we can partition them into clusters based on similar characteristics. This clustering enables us to treat users or items within the same cluster identically, reducing computational complexity and making recommendations more efficient by retaining representative users or items in each cluster.

Furthermore, matrix factorization reveals that content filtering and collaborative filtering are two different factorizations of the same rating matrix. Content filtering focuses on the attributes of items, while collaborative filtering analyzes user-item interactions. By factorizing the matrix, we can bridge the gap between these two approaches and gain a more comprehensive understanding of the data.

Therefore, the basic intuition behind matrix factorization lies in finding a lower-dimensional representation of the rating matrix, identifying latent factors, enabling clustering of users and items, and providing a shared space to describe them. This technique proves valuable in recommendation systems, data analysis, and uncovering hidden patterns within complex datasets.

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Answer:

first image -2.4/3, second image the x intercept is 28, and it represents the time it takes to totally empty the pool

Step-by-step explanation:

the rate of change, or slope, of an equation is the change in y over the change in x. 11-13.4 = -2.4 and 5-2 =3

the x intercept is the x value when y = 0, so 28 in this case. the question is graphing the total volume of a pool and how long it takes to empty it, so when the pool has no water left in it then that's how long it takes to empty

Answer:

Step-by-step explanation:

b is the independent variable.

m is dependent on b.

If 100 boxes are sold, the money collected is 30·100 = $3,000.

They collected $1530.

$1530 × (1 box)/($30) = 51 boxes sold

Answer:

Answers are down below!! ;)

Step-by-step explanation:

1. 7  :  4

  7 or 4

  7 to 4  

2. You will need 20 cups of milk.

ratio = 35:20

explanation: 35/7 = 5 and 4 x 5 =20

Bar diagram: (sorry it looks messy)

cups of flour l____________________________________________

cups of milk  l_____________________

                     _________________________________________________

                     2   4  6  8  10 12  14  16  18  20  22  24  26  28  30  32  34  36  38..

-----------------------------------------------------------

Hope this helps!! ;)

The calculated value of the expression x² + y² + 8 is 12 - 2xy

From the question, we have the following parameters that can be used in our computation:

x + y + 2 = 0

This can be expressed as

x + y = -2

Using the sum of two squares, we have

x² + y² = (x + y)² - 2xy

So, we have

x² + y² = (-2)² - 2xy

Evaluate

x² + y² = 4 - 2xy

Add 8 to both sides

x² + y² + 8 = 12 - 2xy

Hence, the value of the expression x² + y² + 8 is 12 - 2xy

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The solution of equation is x=-3

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

Given

The equation;√x+3=-6

Now,

√x=-6-3

√x=-9

x=-3

Therefore the answer of the given equation will be -3

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